What is the SI unit of momentu1n53b.ime v iyvte u+xffw44/ m?

  When a cannon fires a cannonbalhdw5n0:q9jc ,xzmij;zu2 fr0 l, the cannon will recoil backward because the

  A freight car moves along a frictionless leve7j9 xw2ygvk8v l2ai; rl railroad track at constant speed. The car is open on top. A ;8gir7 2k jvxv9lwya2large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled cfh6+en k/tr:while sledding on frictionless ice. What happens to th6e r/h :fn+ktce velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equal s mr5fz4g uc)qgcmt9qg9z 8v; 6qeju)/ peed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiencq/g);cje r65fu 9 4gv8qzmmqcz) 9tuges the greater momentum change?

  A sailboat of mass m is *0i-zkay0qnex mf 5 p*moving with a momentum p. How would you represent its kinetic energy in terms of these two quantitka pn**x- 5ym0 qifz0eies?

  If you pitch a baseball with twice the kinetic energy you gave it in thl d);,vn:admxw t+l(w sp1i 8we previous pitch, thevxl)lid (w s,n81w ;t:dwmp+a magnitude of its momentum is

State Newton's second *i knz2dybtf tuat,1wug-)6l ,dg w:+law in terms of momentum.

State the law of conservh d2 (rac np8js4qql/,z, s:hnation of momentum.

  The area under the curve on a Force versus time (F vs. t)z(ye1gp: tr t. cvt1z0m- gq0l graph represents

  Which of the followi n+,)m3hy dtoxng is an accurate statement?

  A small car meshes with a large truck in a head-on collision. y b3/pe+hyij4Which of the following statements concerning the magnitude of the average coll /ey+i34yhjbp ision force is correct?

  Two equal mass balls (one red and the other/ j :xl. l79 lx)dvmklbycbftd.p0n/)mq9 (hx blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude 9bm .fnlhxxd. 7ym9 lxkvb/ /)qp:)ld ( jct0lof impulse during its collision with the floor?

  A Ping-Pong ball moving east at a f; caq8qz.;e l+gj: kaspeed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experiences the greater magnitude impuqg8a k;flezc+. :;qa jlse during the collision?

  Two objects collide and bounce off each other. Linear momeo td++nxunz plve4h q-:)9mo 2z.ss 0mntum

  A 3.0-kg object moves to x2h2ig * ye ojes5b2p4the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement2*jog 45yexp sie2h2b is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an :)z 5zdq( rtdi*k1pnf 80-kg halfback run p q rif*kznd:(t)1dz5ning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is p0-g :8uvaw rhconserved, then which of the following staw8pu:0gv- h ratements is true about kinetic energy?

  When is kinetic ener3btzoo.)hw*+nt g6 xfgy conserved?

  In a game of pool, the white cue ball hits the #5 balb/ie q5tt/w:1f1zca /po ulr;l and stops, while the #5 ball moves away with the same velocity as the cue ball had originally.e 1f:/ tb/o/ uqc;zrpi1 5twla The type of collision is

  When a light beach ball rolling withm1ej2 el5 t (w3sl*yee a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximatelyye1* w2 eee3(j5slml t,

  A golf ball travelingpcrkt f8r;ifx) b6;m9 3.0 m/s to the right collides in a head-on collision with a stationary bowlip; )rx f;kbfm968rt cing ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s n8yb 2rbec;e r1e99 rfcollides head-on elastically with an identical ball9r2cr; 8 rby9nbfee1e at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on w xqii n;)kef8,0ssto9ith a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What ,ieqk8 ;si o 0)fnsxt9is the speed of the light object after the collision?

  A very light object moving with speed v collides head-o;0gvc a3y fdk.j x6zq(n with a very heavy object at rest, in a frictionless environment. The col6 y0gzka cvfx j.3;qd(lision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a vel/t kpra*7s2*vh 8qt;:ca v-) 3h4hcixemxrroocity of +3.0 m/s collides head-on with a yellow ball of equal mass movt8)q amahpvcthe co*r3vihk/s -xxr 4:7r;*2ing with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very light (to ,94qrrkb vobject moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collisi qk(b9 r,v4toron?

  In an inelastic collision, if the momentum is conserved,uuky3sn .fr bzh 83zt;o-) au) then which of the follos3k);uoh) na-y 3r .b8 uuzfztwing statements is true about kinetic energy?

  Two objects collide and stick togethes3vu0 ygq*ip7 r. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/ ll*w z* ja u.r*nlq;;wou;m7rs. It collides in a perfectly inelastic collision rawz; n .jr*mll;;lou*w*uq7 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 sticks. lne oqq oa928xgv(4d4 Which object experiences the larger magnitude of mav xogo4 (q8q d2eln49omentum change?

  In a game of pool, the white cue ball hm/o/gsl. u4-g h 8a+wih;ui goits 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 4zbj1mg f d90ois fals 1zm9gb f4jod0e?

  Which of the following is uti8l61ksgw h 7s/8 sfa false statement?

  Tightrope walkers walk with a long fl zvq6 0qjizv5)exible rod in order to

  A plane, flying horizontally, release7k6jmg(+ eqijs a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of t6jgjim +7k qe(he bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free ro9h j bhk6idgz2w7z/s9k c7 u/tad. The collision was completely inelastic and both cars quickly came to rest during the collh ts9c 7kwjdkgz 6u//i9zhb 27ision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of 3q(s8ackeqm 8fg-/o :la *dmkparticles.

  What is the momentum of a 2000-kg truck traveliqnsxsz.9 r: 9,16enl cqnbn*jng at 35 m/s?

  A 1200-kg ferryboat is moving south at 1tmwe s.(*2xcwnvji520 m/s. What is the magnitude of its momeniw(ms.xc2tw*j vn 1e 5tum?

  A ball of mass 0.10 kg is droppirf9um+: 9 graed from a height of 12 m. Its momentum when it strikes the gr+ a: rum9i9gfround is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves 6j(v(y y/ahrpf /td 2ajhq4 4jwith a speed of 25 m/s due north and the other moves at 15 q pj4fjaad2yt4jvr 6hh(/ /y(m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wa1x.h/pp+phw sce +20ut avmo :ll and rebounds at 24 m/s. What is the change in th+.0cp:1uv xp+ /o2 ahpstmew he momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a spx r)ibnf06 rm(eed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. Whatr6 (f imbrn0x) is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is pladwy,q e- *ly*nced on a frozen pond. The machine fires a 0.40-kg baseball with ew dy**l,qn-ya speed of 35 m/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsuleyuz*zf8wtb, pfz7 9 xhu*88s y 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 awauf*y z8s*xuz h zwt7,fy9p88b y from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.ky3t9 kg; r2 8una5inu0 kgm/s approaches head-on a large object at rest. The s2uga3ynki tku n; r958mall object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mc,a/-wt/ w e lmiz9gp(d:ioe + 7;kmduass), who is standinee/ 9i/-wolcp,;+ u(zgd:t midmka7w g still, with open arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight road at a sp6q;e,urv zx j 31x 7fro.4wfoweed of 6.0 m/s. 6uof,x.wf4rvo j3xe;z 1qw r7 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 of a stopped car t nc4 l/:7ae pcd6 /7 ux,4p/oaoyqdplnhat has a mass of 1500 kg and they stick togeto:p/dx/ c7a laec/q n ,4o dy64plp7unher. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is e csq + wg4cn2j/if-)tallowed to coast along a level track atjnw-qs t+ if2 c/g)e4c a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially 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 negligible friction o)qve ;-nz4/iredw.do a3o 8kvup7 qj+ n a horizontal track with pd 7ruea3 o48izo.;jd v+q) -q/wk evna speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, and lands in the car. How fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the /c k.t37wgs tfjp:lj 4rate of 0.80 m/s (with respect to the log). With what speed does thf7:ttj/3k 4l csgw j.pe log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The forcthn/6yo9 zu)yex8b x,e suddenly increases to 15 N and acts for one more second. What impulseen6ohzx),8y bx9/yut was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg3wnz k. ;m8tgt object. What is the object'mk 8ngtz;3tw .s change of velocity?

  A 2000-kg car, traveling to 9i 2;)u* h:gioev/ prr 6vw uew-5qrcgthe right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the w-e/g6quo 9)*wpc vi:w 2vrgr5ru;hi eall?

  A 2.0-kg softball is pitched to you att,kp,;8 ljswi -hupw6 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s wp- uts6lh i;pjkw,8,, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a*6ggy g lrtc0*kr-cs5 table top. The speeds of the ball right before and right after hity-*rgrl kg* cs60gt 5cting 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 top?

  A machine gun, of mass 35.0 kg, fiz1 )9l+;p mnld/mcbr fres 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds pcmlprfdln/bm +z1; )9er minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in ord v1yr)mdp3ny91b 2 ;ajgu;d mper to knock the door down. This requires a f1 vm gpb;3 dm1 nad29rp;)uyjyorce of 1000 N. If 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 horizontal drainpipe at the rate of 1)v. rxyw, fh csp +w +z)4b)0wvjwsu(b20 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn'yfj, z)x.ub wwr+bw+ )(v v 4wcsshp)0t splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s,y1nq5 -5pvy4 wo. wu w4hw+zpc when fired straight up. What average thrust forceo.5wyz4 -5 upy+wqw1pcvwh 4n does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outervl- qjz eo(e18 y6ax dzfls546 space. They push each other apart. What is their separation sl65 -4qej (zay618fdl xovzeafter the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right wit; ))*b-ie 8gsm cnyr00lfeb.zx5usmah a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to sagnzbx- 0e;f) 0) cm ylsr.58m*eibu the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20ft mzon1g, bm j;4j(,qm fynnc /61k0o m/s in the +x direction makes a head-on elastic collision with a 0.15 kg objenmfqt1n4jk j oc/ 10m gm6y;z bo,nf,(ct initially at rest. What is the final velocity of the 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 redbg4 bti.*b0w1 c(8zto kn(ypun:kd 2st. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block right aftt0pwo4dk2 nugk i 1bd(zy tb.(bnc*8: er the collision?

  A proton, of mass m, at rest, is struck h0creo3 y,7 ;;o b*thip;mxquz2skta*ead-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed willtu i y2bkeoorp7*tz;0am 3*c,x ;q h;s the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10nnwl*2l4- -2jqq wl epzy u fk0)h.t(t m/s collides head-on with a stationary ball of mass 100 g.n(z j- uq4)q.*lw2ttk 2lne-yfwlp h 0 The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g fq/:b 9 q4xu ff:1cbqzmoving toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball s 1z 9fcbf x:buqf/q:q4itting 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. It collides head-on withqh o;cwe8nm3/pll ku 9n7l+ e2 a 3.0 kg mass + l9ocqe/le 28;p k 37uwhlnmnat rest. If the collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head)x hz/o+/lzg *djeh,k-on in a perfectly inelastic collision wxje kg +d/oz hz/),*lhith a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling 9s 8tw;/ zcta/7kx objwith a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the init9cs8o k//azw7jxbt ;tial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a2 )o4a6cbu .u:tqx b-harbt06t d/xd o vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bulobxdu:-t /r6)obbc hxqd6.t t2uaa 04let/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 traveling at 90.0 km/h 3mwifn h.yth hs.r20/east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars after .n/0wrf t.i2shh h3my collision?

  A 1500-kg car traveling sbm6:; anl cg:7o*vukat 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of ms7ok:6 an*v ; ulc:gbmotion of the cars after collision?

  Two objects move on a level frictionless surface. Object dy g1a f+g85buqt7v: gA moves east with a momentum of 24 kgm/s. Object B moves north with momentum 101y guvb + qg:7dg58taf kgm/s. They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity of : n /1cd)zxlja4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8.0 m/s; c) /l1:ndzjax 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 sits at x = + 21.sw;b8tji,+d m6n 8qmr 0 m. Where 8+ st;68,rqn mjwdbmiis the center of mass on the x-axis?

  The center of mass of a two-;xm115nu ;hp s2i y1cavy mk+lparticle system is at the origin. One particle is located at (3.0 m, 0) and has a masv;1 mclp i xyu11+5mnykas;h2s of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0),f+c; p /)v3 aytcbca6f 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determinec f6ytv3cbp+ )/a;cf a the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at qyyl3cqveb a-:8k) o8(0, 0), (1.0 m, 1.0 m), and (2.0 m,3-yy ceakvq)q8lo: b8 -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 1.0-kg mass is positionwy.lm9db1t- ped at (12, 0). What are the coordin-.w9mbp dt 1ylates 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, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg including thbf o7ytchdk +4i7p w)0e f tkod)hp+i07wc4f 7yb oot when the leg is stretched straight out. Assume the person is 1.60 m tall.