What is the SI unit of momeblb g 7a ty,;cbmc*4 ic f8u+bdaz:9k,ntum?

  When a cannon fires a cannonball, the cann c so3wy1 m+fgn9x .u++ywti0uon will recoil backward because the

  A freight car moves along a frictionless level railroad track am jtt2q,rxa /8 -dv.sut constant speed. The car is open on top. A large load of co /vt.urd a,qsm8t 2j-xal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionl tn(,wvd pr4. .hodud;ess ice. What happenst., . (4w ddn;rovudhp to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They l:3*lm t ,l0u 5ipls5acb6qvnare thrown with equal speed against a wall. The ball bounces back with nea 5c5u: amqvi3*,0l plllt snb6rly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you representw apz2(sl - lh+v3puo1dqjb(;. efpf9 its kil f(lfpbpw 3-szvu( +q ;opejha2.d19netic energy in terms of these two quantities?

  If you pitch a baseball with twknj,y b+rk 5mjp*di7 9ice the kinetic energy you gave it in the previous pij*d +5mn7 prjb,i k9kytch, the magnitude of its momentum is

State Newton's second law in terms ofv4sx.,) yhoj*9bvu pp momentum.

State the law of conse8*(eq / ) hyejohsqjfyjo;mhv4+k f:1rvation of momentum.

  The area under the curve on a Force versus timg4aux x04mgln g 6(i8f fugu66e (F vs. t) graph represents

  Which of the followinw6v 70/ok )p8:c nx+ttwaxy umg is an accurate statement?

  A small car meshes with a large truck in a head-on collision. Wsaq(.7q7y bdv 7 m9mbehich of the following statements concerning the magnitude of th9v(de7m qam qb s7.b7ye average collision force is correct?

  Two equal mass balls (one red and the other blue) are3 9(m 3b).e*fh 0zpme b0e9mpmofndhx dropped from the same height, and rebound off t( )oz .3mm3fefhb00eb9hmxpde *nm 9phe floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east 9/e al- euj fkg8)9s a8lxs9ugat a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the 9s kx ug/gu9)ea9-ejsl8fla8 west, and the bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear momej7 tdggjt*1.z3cnmwc /y qg4(3z4 unvntum

  A 3.0-kg object moves to the right a4 j/6q/f+gawkqc-bi ct 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2q-a / 6bqk4c/j+cwgi f.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfbab z )k+no wp9ce5n5ye4ck ruoy4 5en9cn+bwz kp5e) nning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which ofb*a2amp(b2 k r )-hklo the following statementsbhkmo *2 p(2a-)r kalb is true about kinetic energy?

  When is kinetic energy co7sp7mtp: ii j73rlkq:nserved?

  In a game of pool, the white cue bali(tasf.z8h0h l hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the (si 8htf.0az hcue ball had originally. The type of collision is

  When a light beach bxf 0pc* iawn b:h v22)6q2girpall rolling with a speed of 6.0 m/s collides with a heavy exercise ball at restc*h ib0qg2r):n6px v2wi2 afp , the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-od2rs yl ye+(u:r0olvh 3.hr j4n collision with a stationary bowling ball in a friction-free environment. If the collision is almost pehr3uyl4dj+e(h2vs. r r0 :lyo rfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speyvh0 gzu)la8t w +9b1tcdr n8ve+go.+ed of 5.0 m/s collides head-on elastically with an identical ball at rest. What is gebo8 dl.at) z y8t rwun vv1g9+++0hcthe speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v coll:j5fo ut,p2x 99 rhz;wni jocq1hij/2ides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. Whath ooj ;h:x/i f2uwn ,ij91qt52 jz9prc is the speed of the light object after the collision?

  A very light object moving cel9v6j 2 n.evwith speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the cole.c j9n62elv vlision is

  A red ball with a velocity of +3.0 m/s collides head-on with1g3qhnv ;h;0ute wr6j a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is;newuv0ht6hr q;j 31g the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very vjg/ +44kmtb, d)c5f8-bmtkym*ue yx light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object bar)cm4k d5fety u*ymv/j+8k 4bt g-bm,xely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momem9 r2cp,vdno+a17 8bxcip s0sntum is conserved, then which of the following statements is true aboutpd,c9i+sa bprvs1x2c7 n 08 mo kinetic energy?

  Two objects collide and stick together. Kinetic en h7+yg *( .fqoe-wdexiergy

  A 3.0-kg object moves to ieq :iabp36.x bj( :49wtpbtfe+*p ruthe right at 4.0 m/s. It collides in a perfectly inelastic collutb* b6eq+.ti34:pppje 9(fw: b xari ision with a
6.1 kg object moving to the left at 2.0 m/s. What is the total kinetic energy after the collision?

  A small object collides with a large object and st/79 gcyeug5 ylicks. Which object experiences the largeu9yl yg/egc 75r magnitude of momentum change?

  In a game of pool, the whit 5o*k(6chn tov3uyxr;e cue ball hits the #9 ball and is deflected at a $35^{\circ}$ angle to the original line of motion. What is the angle of deflection below the original line of motion for the #9 ball?

  Consider two unequal masses, M and m. Which of the following statements is fac5 ) uhu3mj9qyg ntppby c7py700/b*plse?pymutyc 0 y n/5up bq7)397cpp0g b*jh

  Which of the following is a false state6dy,z 8a ezyf-ment?

  Tightrope walkers walk with a long y v4qn.oy9n 1i6s5w aog*1 immflexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting v. of8l oo7e6je,c :ocz2q+ ssthe ground. Neglecting air resistance, the center of mass of the bomb fragments, just aftz ,oj2lso ec68vs .ocfq:+e7o er the explosion

  Two cars collide head-on on a level fri+rl6-7f6hw4qn 2 qkujkpl6 dxction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about4l6+ qk6n2p6 d j-fxrqhwul7k the velocity of this system's center of mass?

State Newton's secondbzut5a+ ro*um n62t1s law for a system of particles.

  What is the momentum of a 2000 c(:by j/nxjlc ; bhk;v/rvq,--kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is gn , jdor*z0o3foc/q 6the magnitude of its momentu,go/c f0* oq6nj drzo3m?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum si3okj3n q29(xzi:o :dzak e9 when it strik9nqz i9ekd:23siok(axz :j3o es the ground is

  Two identical 1500-kg cars are moving peh w963m mxlgbhyb,u p)ke. (s/rpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum ofb/hg3e 6y)m hl ,m.bupw(x ks9 the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes an. ndi9,pb-id wall and rebounds at 24 m/s. What is the change in the momentum of the balind9 p.d, in-bl?

  A 0.060-kg tennis bal;k mr nq.m2cl.kpv,7nf(suz (l, initially moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the oppop(; m2nz.kmnlf .u crk7, qs(vsite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen 6e2gcj ka*ish(.sq+xzb 5 d5wiwrz 38pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume negligi3zcgk(bij hrs8 2 5 +aew*zqd5.iw6xsble friction.)

  A 70-kg astronaut is space-walking ounf;8bk4 wpcs4 bxnl50;6e uy d 67dwumtside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammer at a speed of 14 m/s away from the capsule. At what 0lu;bwmx67pbnkn8cw 5d6y ; sedf4u4speed does the astronaut move toward the capsule?

  A small object with momentub,l)bf*w c+,o4 6db dyhgwrd3m 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the larg4rw+d)od6, , *b3l fwhybg cdbe object's momentum change?

  You (50-kg mass) skate no m1 trpv9a) -4r3dleon ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each o9drmrl41oe3 )-natvpther, with what speed do you both move off together?

  A car of mass 1000 kg mzs8y),iu7fzei69u ee/ lkem3oves to the right along a level, straight road at a speed of 6.0 meemzu/zl7,f y u6esi8 ke9)3 i/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear ofk :8frs;3g u+ml ocws3 a stopped car that has asscf +:3uw8lkrgo ; 3m mass of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along8d 0 orogihw0o2fw-k7 a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initiall2wi-0f oh0d7wr8 ogoky at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negls oq6(:wn;xgg igible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, and lands x6wgnsq;(og: in the car. How fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kn hi4h egr )0,e5.qonkg log at the rate of 0.80 m/s (with respect to the log). Wi 5eeg,n.onqh0ir) k4 hth what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to x1c/ mii btl/715 N and acts for one more second. What impulse was imparted by tixc1 t7mil /b/hese forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the opdgll0(d qm;s dw:5 1abject's change of velocita5l:0pdd1dgmqw( ; sly?

  A 2000-kg car, traveling to the right /evl5+uzm. gt5 dr 6bko.u m drmxka t**5f4;xat 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the averaget erv*5m4 o.axmt u56x/k r;d5.fu bzgmk+*d l force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the balbtu8 7t7b e.g7.cxg1 shupt r3/1kwwil back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is t eik7hwgc7u 8p/wt 7..trbs31tb 1 xughe magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball righ56e jlxl ;5rebt before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If the collision between the ball and the table top lasts 0.15 s, what is the magnitude of the average force exerted on the ball by the table tojeerl;5x 65 blp?

  A machine gun, of mass 35.0 uo3*ici6d2e f ,edat :kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of6*atd e3efdcii,u: 2o 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building igo8q*gqila1+; p mjf* xd ch64n order to knock the door down. This requires a force of 1000 N. q6+op4hid*gf*ml a g;cx1 qj 8If the hose delivers 40 kg per second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontak*ow xcrrn: -ek,c( 0al drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the groa: -nrewc(rxok ck0, *und. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 mntny *gnddxj i*9 y/(9/s after 3.0 s, when fired straight up. What aved dnt/*9 gj yxnn9y*i(rage thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are init lnxa .1/ gf-hij:syozp6 4/ftially at rest in outer space. They push each other apart. What is their separation after the lighterzhlyfa1 .px/-tn o g:ji4/6 sf astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It colliderj h;-+z md56f d2ypkps in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. Wp-+ydkf6p ; dzm2rjh 5hat is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a hrmu1, ,3 3 du)bgtvlpqead-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of t,pulbq3v1t , mur)d3g he 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. Therz ,kcw, rchvbd.,+4b bullet emerges (the bullet does not get embedded in the block) with half of its original sp+cbw, r,4.z, rvckhbdeed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, ijxf-65 w9c kat b;m60iul.kup s struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is com5wk.xj0 ;ul6 cfp ku6b9-ma tipletely elastic, what speed will the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of ma8w6skrhcy kq-xcqm q1u /s5h jx8 z397ss 100 g. The collision is elastic. What is the speed of each ball immediately after th5cxxh1898 -wc/s7hsyj q6umr kk qzq3e collision?

A ball of mass 400 g moving toward the east w0tl-dvd0y6 3y b2 m*peuc ,mzyith a speed of 3.70 m/s collides head-on with a 200 t0p*dvm, d m6uy2zle0 c-3 ybyg ball sitting at rest. The collision is perfectly elastic.
(a) Determine the velocity of the first ball after the collision.
(b) Determine the velocity of the second ball after the collision.
(c) Is kinetic energy conserved in this collision?

  A 2.0-kg mass moves with a speed of 5.0 m/s.y/); zw09vdsow5wbx j It collides head-on with a 3.0 kg mass at rest. If the collision is per vxw09o sdzj5wybw/); fectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east k+w/n22osce prf1z rk);i6ik at a speed of 4.0 m/s collides head-on in a perfk )w2pkreo ;ci1r+znsi /26k fectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a ve: o fxbw4ng3f4locity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What frw4f4onx3b fg: action of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a (ves-dlq-d 5f 2.4-kg block of wood a rest directly above it. As a result, the b5-dsfe lvqd(- ullet/block combination moves vertically upward.
(a) Determine the velocity of the bullet/block combination at the point of impact.
(b) Determine the maximum height reached by the bullet/block combination.
(c) Is kinetic energy conserved in this collision?

  A 1500-kg car travelinfn:ic7j ,:xw4bmue;xcj; :d dg at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars sticki4e :x,j;wu :fjcnm7 b:ddx c; together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at .sf0gn3gvyby+ n0 e.3byb + us90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after 0n3 un +.. s+b3gsbyby gfvye0the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A m1s.0drq g dw:s0,nc epoves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. Whatc :.s e0pddqwgrn10s, is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving towaro4w) r.kv (t7,5(tzobzcofd od the North with a velocity of 4.0 m/s. It explodes into three fragments: a 5fo.k obc o4)tor 7(wvz5(d,tz.0-kg fragment moving west with a speed of 8.0 m/s; a 4.0-kg fragment moving east with a speed of 10 m/s; and a third fragment with a mass of 1.0 kg. What is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sitskit-9 c4b;v hi at x = + 21.0 m. Where is the center of ma;iv9-thbk4 ic ss on the x-axis?

  The center of mass of a two-particle system is at the( o0wfccv81 il origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg.o8f1 v (lic0cw What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0,pjd+a3 cp 3 xv7.e5)bz,v+pg dk 6vfwh 0), and h,7++fewpdd vjp3xpcg).5bk6av v3 z 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1tuny5 -rjnxq,u pp*02 , nmlx;.0 m), and (2.0 n0rjmx-nln2* yx5,ut pu,qp; m, -2.0 m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0y hrk qz7v/9rt7;fz1qu ,v dy1-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system of three masses being located at the origin, (0y;qyq1 ,19t/rr ku dzzv7fh7v , 0)?

  Use Table 7-1 to calculate the j hr,wl33at z s*ixw,,position of the CM of a whole leg including the foot wh, i3w z*a,r3 xsj,wlhten the leg is stretched straight out. Assume the person is 1.60 m tall.