What is the SI unit of mom:dm(db qn vw*.*zqj p*entum?

  When a cannon fires a cannonball, the cannon will recoil backward becalxy o :bxd3 ,1gio5t3t6emixk0g4u h0 use the

  A freight car moves along a frictionless lb1ei6id 4javzz6 t.99w lbgk(evel railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of t g ei.961 ilz(bvb96w kjzd4tahe car?

  A child falls sideways off a sled while sledding on i. *ur pjbjjw,77s +r4rdufp(frictionless ice. What happens to the velocity of the sled?w4rsj b(7ur* .,pfr+pjjdu7i

  A rubber ball and a lump i a3el3ieh4 c2of putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty stiail23c 43 eihecks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would p /)ij ovv+q4l ic:d ;(ia7kt1pvdo3gyou represent its kinetic energy in terms of these two quantv avpkji+t1 /qlvd4i c37po;:di)o (gities?

  If you pitch a baseball with twice :dx;ru*d mmo 179hes9:uccx5rp vc+t the kinetic energy you gave it in the previous pitch, the magnitude of its mom*o uccv 15ed: cm:pm7r99drtu;+sxx h entum is

State Newton's second law i:4( bqvvh4miu hu0b,xn terms of momentum.

State the law of conservation oc j 6giw)zbu* ae5ojo;f-3q1n *7dzgif momentum.

  The area under the curve on a Force ;:cnlkhd2jd1 7piy5 m versus time (F vs. t) graph represents

  Which of the following is an accu(n9ej2j2gsq- ea1lhv(7kb jg rate statement?

  A small car meshes with a large truck i g 4fm9px o+7dbxha*:fn a head-on collision. Which of the following statements comb*ogx:x +h fapf 497dncerning the magnitude of the average collision force is correct?

  Two equal mass balls (one rp;fnk 0 wrt0t .5upi,v*5cbxoed and the other blue) are dropped from the same height, and rebound off the floor. The red ball x5o5*ck.wn0t;ir0vf, btpp urebounds 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 at a speed of 4 m/s, collides with aqh7fjvl/+r r lq xd.85 stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. x+fdlq/5lq8r7hrj v . Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off eavos) km35 wln-,abs ejas:p0( ch other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0-e:jcdky /r6wscx( -;zkg object moving to the left :ky-e(/d6zxwscr;j c at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfback g 8srak2*a7lkg2k*8krl as7a running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserve8vhcp+*u6r r,e)ia jh) viya3d, then which of the following statements is true about6h8 var3)ahr* +c,i ypei)juv kinetic energy?

  When is kinetic energy conserved?ll/qhpd, hf+zm2s, +q

  In a game of pool, the white 0.k2acrp).axv kla) 0abum4c cue ball hits the #5 ball and stops, while the #5 ball moves away with the same.ra))u aabclak.p4v kx20cm 0 velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a heavyqh4njqt rewio xtk0688:j ,l( exercise ball at rest, the beach ball's speeh4koj0 j weq,itlx8(6:t8rq n d after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-onmwnlv75gf92 u 3krm,c wht,s7 collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately 9wtnml2h mf,c7gsk73v5u ,r wafter the collision is

  A rubber ball with a speed of 5.0* iuo(glw3 jy3 p(fus; m/s collides head-on elastically with an identical ball at rest. What is the speed of the iniso wui3p f;jl( yu3(*gtially stopped ball after the collision?

  A very heavy object moh6)o zy; e6 8k.(hribrqln*dlving with speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light obj.* l86qh) do;hbrrnl iezk6(yect after the collision?

  A very light object moving with speed v collides head-on with a very heavy 9th2qa gu j,n0object j 0n2hugt9a,qat rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a yell qgxre4e)p.-zcr hg -/ow ball of equal maee hg -rcgx)4-prz./qss moving 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 collid2l4 sq:7o7pbnb: 0fzi5o fc kees head-on with a very light objeo 4fqcbeip7nb5s: 0fk:zo 7l2ct 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 collision?

  In an inelastic collision, if the momentum iqe2 h 2 5q- -1xdnqwiqnucdc59s conserved, then which of the following stateme-1dqcn9q2enxu 2w q- 55 qcidhnts is true about kinetic energy?

  Two objects collide and stiy r e9bkn14h5bck together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. ma* (z/db 5zfv It collides in a perfectly inelasbz*f5 d(av/ zmtic collision 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. 9ohpyw0sttkoj+y. 84Which object experiences the larger magnitude skhpo98yt.0+y wto4 j of momentum change?

  In a game of pool, the white cue ball hits the #9 ball fb4- bsr:sb,ys9c q* vand 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 mass8w/miouf6ya2e4x a 4h es, M and m. Which of the following statements is false?44w8uo /yae6xmf2 ahi

  Which of the followim0zw kf/ su*r8ng is a false statement?

  Tightrope walkers walk with a long flexible rn(sbn7cl*bpanz oo+ ( tk v *iy: w)f12s/vl+yod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting the* 1zgtkryi : z7zfb:*v ground. Neglecting air resistance, the center of mass of the bgz ztyzi:*vr kf1*:7bomb fragments, just after the explosion

  Two cars collide head-on on a level fric ew:(6 6sbcrvjtion-free road. The collision was completely inelastic and both br6vcs(e 6: wjcars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a syste7hi2mb39z:5ly 4th .q zjkhr im of particles.

  What is the momentum of a 2000-kg truck traveling at 35 m/s/r dx g0lmh+t/?

  A 1200-kg ferryboat is moving south at 20 m/s. Wc 4bqz-jvt1h ,hat is the magnitude of its momez q 1tcvb-,h4jntum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mom8 ee3qor. yf+ventum when it strikes the grouqoey fev3.8+r nd is

  Two identical 1500-kg cas.sj-ph)zr q;y/sd l -rs are moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves atq -.h )rdy;l j/ssszp- 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.dgd)vtq e;+90ptn(fh 10 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum offe;+)n dp9d(q0t ghvt the ball?

  A 0.060-kg tennis ball, inf+s;1 kqu 2s ;)nvoivkitially moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction a +fi vusv;k2o;ks1q)nt 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 pond. Tquse7xgcc63)6 kaaw * he machine fires a 0.40-kg baseb7x3c )ga *uesaqc6k6 wall with a 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 space8vc-e ag /zne+ 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 speede-zv/e 8cag +n does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a largeazo ( - c(xb2 :mela+r-s9fqrp object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. czq-9roef(ar:sl+ (-xbm pa 2What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate o8f a d p.+ro.ikvd)n8kn ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. .nk8kd)paivd f.r+ 8o 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 9.n ,,a pmiamyeq/c9xalong a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. Wxamqe9apn/ ., ym ci9,hat is the total momentum after the collision?

  A 1000-kg car traveling at 25:lhwp/s ze:. 4j qc)nib; -plm m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. pibl4:mezwnp: h/;s)c q- j.l What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a levelijj1.2 h,re 6htu rxp. track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at,1r6. ihxp. hrjeut 2j 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 on)6v v9/.wrh by x,m2k0ok qywq a horizontal track with a speed of 10 m/s hrvobx.yyqm 0v6w)k9,2kqw/ . 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 t.8 cwl7 at+ wlodjo(6log at the rate of 0.80 m/s (with respect to the log). With what speedjd. t+86ol cat (l7wwo does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an obgr (gci+ 0+h0wu7:driyv/r;ba6m aa a ject. The force suddenly increases to 15 N and acts for one more second.m:ayd;0gvc iw(0 +g6h7bruiaa +/ rr a What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s *1i /wio/qe 4(4zinl: xgdfw qon a 6.0-kg object. What is the object4( /4ifqeoni*i:ldg1q /w xw z's change of velocity?

  A 2000-kg car, traveling to thv44ith ae e)l.e right at 30 m/s, collides with a brick wall and comes to reaet.v4 4h li)est in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m4 ,zvt;opp7jah 2cz9t/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, what is the;z2p 7 pjv9tzo4at c,h magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. Thejjm-d4/tg c0+9dmn4 f6 wl fix speeds of the ball right before and4m/ 06n+tf 4fiwxdm cjd9g-lj 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 top?

  A machine gun, of mass 354ov, k y,a.4agw8ikcq.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted ka .w,i44og,cy kaqv8on the machine gun mount?

  A fire hose is turned on the door of a burn/n-i c)-pnra7h/tn y cwe ;t4z,-b rmking building in order to knock the door down. This requires a force of 1000 N. If t bictk/; ytwern-4mzn),7h ac -rn/p-he 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 120 kg per znzmzn 8w;:ix*vify i 3+ikj193m1lj minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, whaz +l1jiwf im3v8 1j:3n *xzm;ni ikyz9t average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity ovrwn gqrk)vks, n6n. y2+,s.aik k2fp5 t8wi ,f 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket ewn,+kv 8i,pkqk v2r 5rns kyt62.ignwas,.)fngine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer spqe4p6wm -b9 tgace. They push each other apart. What is their separati46gpt m-9wqb eon after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with rx)(bbly t7 -na speed of 2.0 m/s. It collides in a perfectly elastic collision with ab rxy-t()n lb7 6.0-kg object moving to 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 0.20 m/f+l +*ujc4az c9n u0tis in the +x direction makes a head-on elastic collision with 0l 4u jtca +*+9ufznica 0.15 kg object 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 bl(tv kyxztw)w g3xc1 5r-xl42pock at rest. 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 rightlv54 t1k zyxtg(2c x)rwp3wx- after the collision?

  A proton, of mass m, at rest, is st73 zo6 vs5 rbpqqba5r;ruck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is c6 37;q5 rz bavos5pbqrompletely 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 mass 109g h(a4h1o zom0 g. The collision is elastm14 oazo(g 9hhic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g movingu.ts vw7) rx:y toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collixu)s :v7rtyw.sion 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 cikkoq 6g s3300 3hulz7y 8 j38vjaskqjollides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the yz 03v3jg6 l8s0juajk3ikkos 738qqhmasses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collidesyop bg6r bp2 r (2l*9-rxd,xao head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost (ror- y2x,adlb o9px26 *rpbg during this collision?

  A car of mass m, traveling with a velocity vc4d *64lz.e -uxrujqc, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initia4d4euulqccjzx6 .- *r l kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/swh3/x5pvfknwbx-- 0 b in a vertical direction buries itself in a 2.4-kg block of wood a rest directly abovb 5-0pxbkx nvf 3-/wwhe it. As a result, the bullet/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 zh+,k)xdm3r3p+.bn n mu*a-sv.4yp-q vw bx x90.0 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 speed of the hbnpm-v4xr+*dzmq-. ).xp,bauk3s+x 3 y nwvcars after collision?

  A 1500-kg car traveling at 90.0 km/h east col.g wcg-ndo9r1j 2ggv w,2r2exlides 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 motion of thg- vo22 jwg91nr ,edgxrc.gw2e cars after collision?

  Two objects move on a level frictionless surface. Object A mf)es+-lyaqmj2 id y+-oves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelasjyaf2e + i -y-qdsm+l)tic 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 veztvrv:0 7g-k*/a7ijlrfcxu ;locity of 4.0 m/s. It explodes into three fragments: a 5.0-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 isvrj7 :c k0-u;/rtl*afgz7 vix the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10u2fz: 7h+v wq 4n-1i0 fcmypmp.0-kg mass sits at x = + 21.0 m. Where is the cepufnz cph+wmm12iyv :qf40 7 -nter of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. m3 nf wuyi57 r5a9*nxtyx..sd One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second *d w9 5.x5 my7s3txr.yn anuifmass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.uy:1jjzjps/3j by 0n1 0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the cnj:jj3jb 1 us yyz0p/1enter of mass.

  Three masses, 1.0 kg, 2.0 kg,etpkb k0 y1frhg;+ +m3 and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of the sh k+f0ge ;3mpbk1r +ytystem?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kgj;8q1 32v89yqb ifmgvf yv3 jf 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,vv gfm8q jq;39ifbfy3v8j 2 y1 (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg o:*6(;b-x,/qec zqol m/nqljh. uv hq including the foot when the leg is stretched straight out. Assume the person is 1.60 ml,(j: o/ol;*mqcqnq/q6.ex v hb z-hu tall.