What is the SI unit of momenmup6:r.5bmp t8* fsratum?

  When a cannon fires a eu;ep*,yb8 c324qfk1rgsv3kq: k r mwcannonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad /ir,2ref ::qh -cey 6q:n (znhe6dhzj track at constant speed. The car is open on top. A large load of coal(eh,n2h /:::iyqne-jz drf qcr6z h6e is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a:j -2r w*wzla w))x+x huff1ro sled while sledding on frictionless ice. What happens to the velocity of the sled wrfaf2wjuh*zx )x:l-+o) r1w?

  A rubber ball and a lump of putty have equal mass. f 1ngnx7n1-ef They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks txnn fg1-nf 17eo the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a mgfq8q6shdk(:;j gry- ta :yk9 omentum p. How would you represent its kinetic-as(yq;6h j : y8gkdf:trk9gq energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it it/h j/fimn7c 7n the previous pitch, the magnitude of its moment7 /7jmf/nhcitum is

State Newton's second law in t7spx7olq,bp qo mf+pvr da2 xg(t*a+d;fk5: +erms of momentum.

State the law of conservation of5w+yl)p xcp m) momentum.

  The area under the curve on a Fofpucgvk *j.f-*s o 5: ovg7y0drce versus time (F vs. t) graph represents

  Which of the following is an accurate statrkyx(++ x81ekndu*zf ement?

  A small car meshes with a l p*l5y+31 ck9-ynxda xns b.ziarge truck in a head-on collision. Which of the following statements concerning the magnitude of the average collision forcl.cy ia*d9xz b15 y-+kxn3nps e is correct?

  Two equal mass balls (one red and the other blue) are dropped from the sk 6b, cz3 -l1buha1nc hi2.crgame height, and rebound off the floor. The red ball rebounds to a hh g.a 132hci,rlc 6bckn uz-1bigher 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 a statvd0rzq 5qs9cz v0 7 vifgc7e.:ionary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to 9.0 vvgi0 5 7ecvdcf:qz7qrzsthe east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and dhy bq4ix 3pj1x,*ym,bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It c6jtx4j6v d 1,za ,ss5q*dbydhollides head-on with a 6.0-kg object moving to t 1*d 6,,4htv5sxqzd6asdy bjjhe left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebaq u0h,hxidz7 1mv-u h0cker moving at 2.0 m/s tackles head-on an 80-kg halfback runnum 0hvq1xu z,-7 di0hhing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum isv(*dau0qy9/re c n8i cj :m.otbsva.7 conserved, then which of the following statementt/*:nvvoi.0 aa( rde9.sjy ccqu 7b8 ms is true about kinetic energy?

  When is kinetic energy c,, m 9bq9dd ov3q-qfc6mgw9hzonserved?

  In a game of pool, the white cue ball hitttnjc9 :q2)n,dkx/1zg fkof/ s the #5 ball and stops, while the #5 ball moves away witj ) t zkc19,nnf2ogqd/t:f/kxh the same 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 c: aft9imvyr4, ollides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approx94,rit yvm af:imately,

  A golf ball traveling 3.0 mi m::u z g,a;eqejkd.,/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free environmae: ;qm., ,:eudz gijkent. 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 collides head-on elastically wi,5 etz /xsq7blth an identical ball at rest. What is the speed of the initially stopped ball after the collisionz7bs x,te5 /ql?

  A very heavy object moving with speed v collides head-on with a very lifaq qkcnq5+6bg6i 7 4wght object at rest. The collision is elastic, and there is no friction. The heavy 6qaqiqgf5 +74 ckwn6b object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed wsl 1i 7v(i f3c) ee9j- k2sfstm5f)d dnac6p-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 coll e1-)vkfms2i es-( 5f dwcadp 9nl76)tc3i fjsision is

  A red ball with a velocm0cw 7 g,rwec ll-r(z3ity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision3rllcegmc0(-wz w , 7r?

  A very heavy object moving with velocity v c dhb4hy7z:pr: ollides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy objec4yr7:bh:d zhp t barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is ci))c bc78h p.9trclur onserved, then which of the followucl9 rr i bh).87tc)cping statements is true about kinetic energy?

  Two objects collide and stw( h04 :ehfc9gk+bib nick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in b7, 0lb0z)hedob:z; -i:)y gq x lbxiza perfectly inelastic collision wi) y0z0xzgii: dbb,x eb ol)z;hblq:7-th 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. Which object experiencerlgtn jo0mui 76e.d50 s the larger mae5i dn0t g lu.o06rjm7gnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball aet554tkvb *fand 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. Wb,.k76cd gxfwoo p:pn 8n(yz (hich of the following statements is falsek(: .pogpxno dn7w6, cybz(f8 ?

  Which of the following is a false staet6y hw (cwb;+mdz3;k tement?

  Tightrope walkers walk with a long flexn9zj*3gfgw vizz) go .0t6 0auible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hittin,z cmt7d1tn saq+0edf7;hhxm2f0 .oj g the ground. Neglecting air resistance, the center of mass of the d.7;fmaeocd1h0x jn7zmt2+sh 0f qt ,bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was comir rdkk8t;5s1* per (dpletely inelastic and both cars quickly came to rest durin r(p;drs1ke8 kd*r it5g the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a sy* h+e sax9y02bl5(fdb,., kmyf l vvlystem of particles.

  What is the momentum of a 2000-kg trucnv5e6 4 gwfm5a rrw/f5k traveling at 35 m/s?

  A 1200-kg ferryboat is moving south h/4yu1d .9krwb3q coz6.twzo at 20 m/s. What is the magnitude of its moment61z ohdtwrubockq w.9y3/4. zum?

  A ball of mass 0.10 kg is dropped from a height of 12 m-fwm33 ar8 qot. Its momentum when it strikes th fq83tam-rw 3oe ground is

  Two identical 1500-kg cars are moving perpendiculysicy6lge 3+/s ,*q y6mmtk+lar to each other. One moves withygm/ ,eqi 6s*ym+kst l6c+3yl a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at k7i9nq2me w dmd+dg-930 m/s, strikes a wall and rebounds at 24 m/s. What is the change ind-kn992 qwd7 miemdg+ the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s0f2/ek*woqww 4 o s45wbo5tvv, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ballwk/f5 vo44qv eto5ow*w s0bw2 ?

  A 50-kg pitching machine (excluding the baseball) is placed on uzz8+pekv p 2/0qogfq5v,dh+ a frozen pond. The machine fires a 0.40-kg baseballve0+pgo8hzk5 zf q+d,p u2v/ q 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 spacea4id0 m0haq( aoow9s /-walking outside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsi4h ows9m oa 0aq/(ad0ule he throws his 2.0-kg space hammer at a speed of 14 m/s away from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approau,:x3d 6j x:iot n/fpv+v4nj y7;algbches head-on a large object at rest. The small objej7a j/vxxu3 g;pfb+do 4i6ltynv n,::ct 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 4.1/ et b*y flu39io-gvp0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off togethe / gu19t* loeybf-ivp3r?

  A car of mass 1000 kg moves to the right along a level, straight road at7q6 vcwj)- 5cndxted + a speed of 6.0 m/s. It collidesdn6v cd 75qex-t wj+)c 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 ofp9xphb ve i4:+ a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after he:x bp+4i9p vthe collision?

  A railroad freight car, mass 15,000 kg, is allouiuh6o(w 6q0 gwed to coast along a level track at 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 coupihu60u 6w(gq oling?

  A railroad car, of mass 200 kg, p2fk3drc3 *kfrolls with negligible friction on a horizontal track *rd fkcfk332p with a 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 29 g:9bl(ff x lscpp+1wuwf- fwb :8rwat the rate of 0.80 m/s (with respect to the log). With what speed does the log mov bfwgu-(sr plwb2f w9p81fw:9:lx+ cfe, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenl)j3ucili/ead9:k0 v2m. mip7n 2tqxf y increases to 15 N and acts for one more second. What impulse was imparted by these forces to the obi)7tjn0 x:2lime9pdim 2kcfv. /3a uq ject?

  A constant 9.0-N net forzm 5 vnj( qosqoyycv1u q5bflb72)* 55ce acts for 2.0 s on a 6.0-kg object. What is the object's chang2q vfy5bs5m 55jl 1ov)bcu(yznoq7q* e of velocity?

  A 2000-kg car, traveling to62rd;j;vbb3 b r. gkln the right at 30 m/s, collides with a brick wall and com;rljgb3ndk6.2 v;bbres to rest 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 m/s. You hit the bavzhmu v,9aa7(- z9tnwll 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 magnitude of the average force the bat exerted?9mz(h-7a9 wna tv ,zuv

  A 0.10-kg ball is dropped onto a table top. The s 7t zlblzsn2t7u 5(bq is+,0nmpeeds of the ball right 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 tb7 isl(nz20nt5slq ,7 +tmuz bop?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muzzle vmy/l2 82q0pl m/qr xweelocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machin/ 2mxwq/r lmeqy20pl8e gun mount?

  A fire hose is turned on the door of a burning building in order to kno9by k z;s*dixg3 gh+2u(n+yhrck the door down. This requires a force 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 ; b g+9 yyz+2xigr*hhsuk(dn3bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kgs0,4 f wma,o+f 3saujc per minute. It falls 3.20 m to thaf,u3 s wf s0a+4cm,oje ground. 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 velbg81mj zmd j5,ocity of 40 m/s after 3.0 s, when fired straight up. What average thrus,dz5jb 18 mjgmt force does the rocket engine exert?

  Two astronauts, of masses 60 kachdnt 8y.v)3 g and 80 kg, are initially at rest in outer space. They push ydnvt.h38a )c each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. 7e 6nqr,v /owjIt collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy a r/jwqo7ev,6n fter the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makesm92frvpunr xy46; jd5 a head-on elastic collision with a 0.15 kg object initially at rest. What is the fi49jfn prum6x;r2d5 vynal velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving . 0yk3ha zia8hat 300 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the z.hia 3a0ky h8block) with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (which k fo:38eam)hpconsists of 2 protons and 2 neutrons) moving at speed v. I8kmap 3ofh) :ef the collision is completely 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 m z07fukxyx1/: wut.q head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately ./1tu0xwzux7fk :myq after the collision?

A ball of mass 400 g moving toward the east1eksb v sq7c8- with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at b7 k1-s8csv qerest. 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. Ifdk /*zmrh,dm,g tkokb+nh 50, ,h)l xt collides head-on with a 3.0 kg mass at rest. If the collision is peokkdm ,xfh*z h,bl)0,rk mn+ dhg 5/,trfectly 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-on inl/jy, lzgud)l;s* h3d a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic e;d du ,3gs/j *zlllhy)nergy is lost during this collision?

  A car of mass m, traveling with a velocity v, str z ef*nqs(ci9o+k8m2nikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collisn( c*eq8 ni2s omz+k9fion?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a)ep l2 8k6qihy 2.4-kg block of wood a rest directly above it. As a result, ki2p)eq6 hl8y 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 90.0 km/h east collides with a 3000-iiz3 ,.5.yw 1 +c,mdbbrzuug xkg car traveling at 60.0 km/h south. The two cars stick togethe,1ibw, u.iy3. z mugcx+5zbrdr after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car traveli,0h 03 8c/bnjafrbeuq*nvf8 b ng 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 the cars after collision ,n80hbebnb /fc3 ra0uvqfj *8?

  Two objects move on a level frictionless surface. Object A move +8j9fhd8p huvs east with a momentum o vh8jh9udf8+p f 24 kgm/s. Object B moves north with momentum 10 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 morw 2lff /*6dxzving toward the North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8.0 x/l fzd*r2w6f 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 sits atx ddf 1r c6(kc9q5re/q x = + 21.0 m. Where is the center of mass on trfxdcdqc6q59( r / 1kehe x-axis?

  The center of mass of a two-particle systnv0 kwn+n/8wlwa1hfwxa: 39t em is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the sn+9wa:n /k3n 8lv 0 wf1twwaxhecond mass of 3.0 kg?

  Three masses are positioned as folh+ u 3w2bg1jxxlows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates+2gbxwxuj 13h 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, 1.0 m),*hrpil ywjcma)w.*;b 1sd5fi y2 f )9m and (2.0 m, -2.0 m), respectively. What is the location of the centerws9**.d ) lji5mhm1r b2 fy)iwca;yfp of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg masswp/dps( wm1i0un h1 6u 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, (0, dnusmih 1p/0uw1w(6p0)?

  Use Table 7-1 to calculate the puo;h9g h yc/9wew6n e*m6h,q sosition of the CM of a whole leg including the foot when the leg is stretched straigeh9*nmcy; uhsgew h wo9q6,6 /ht out. Assume the person is 1.60 m tall.