What is the SI unit ckef pn(1i nds* x:94xof momentum?

  When a cannon fires a cannonball, the cannon will recoil bac7, 43pi )dczzs;vne3zcvc t- ckward because the

  A freight car moves along a frictionless level railroad track at constant s sgii+mb7tx.c2-9jkm /msv8b buw::v peed. The car is open on topt 9u: vx:bi-vm/. 8i 7cwbg+2bj mmssk. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. Wm3nbg;44rdu x hat happens to the velocd unxg 4r3m4;bity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equal0 so 0b3)n31q2 mceowxud t51r iwjnh1 speed against a wall. The ball bounces back with nearly ther32q3sn)cx 0ob imwd5 e1hj u1otwn10 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. Ho xpezhhg(w(/ wroz4 +;w would you represent its kinetic energy in terms of g eh 4(z/zo +;wwxph(rthese two quantities?

  If you pitch a baseball with twice the k(kjc/ah u/(e rs *oyak(u9gz:inetic energy you gave it in the previous pitch, the mau jg a(ke( y(u 9:chaork//z*sgnitude of its momentum is

State Newton's second law in termu(l.5/i5 o7.ett d jj smw2pwts of momentum.

State the law of conservation of mo9tmu lzt756lzmentum.

  The area under the curve on a Force versus time (F vs. t) graph repi (iho8kx 1bw i8ap)5nresents

  Which of the following i.bx8cn 4muudbj - u5e;v2 eey+s an accurate statement?

  A small car meshes with a large truck in a head-on collision. Whichg4t) nh/.ybkn of the following statements concerning the magnitu)k.bnnt/4 hgyde of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are droppep d1j8pii n on38;l; +kgskke9r (wtr1d from the same height, and rebound off the floor. The red ball rebounds to a higher position p(wngkkr9nk;i1 r8doi8s+1p 3jtle; . 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 -yz7 plcvu4 c,a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moc -7l puvc4,yzves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide v ch 4dfjp0e8c+k .jt6and bounce off each 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-hst cz,1)vx7 j2plr,hkg object moving to thp7 2xl,h 1)tj,hvsz cre left 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 8ur7o06x0g+:i2 wokeh* dcbgd py p6m run i6dg *omyc+7uohr dk : xb0g2wp680epning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of the fomk3it6r hhj;qz(gksg;r g)63*f, rwpllowing statements is tr jrrzg6;,q(iw 3pkhh;)st6rg3m k*gf ue about kinetic energy?

  When is kinetic energy conserved?r3 d1r.4hxswc4qj cpc.()lbw

  In a game of pool, the white cue ball hits the #5 ball and stops, whi9 pi:jq8fk k0rle the #5 ball moves away with the same velocity as the cue ball had originally. The type of cq8 i jkk0r:p9follision is

  When a light beach ball rolling with a speed of 6dauqm,3-kob.0 y,w ug .0 m/s collides with a heavy exercise ball at rest, a,q umyo-g.,b3w0kud the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0vi8 (inw rrn*.n 95xnfkn ml7) m/s to the right collides in a head-on collision with a stationary bowlin.7* wink x)vlrnnin m5fr89n( g 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 collides head-on elastically with aff2s1 +k e:mgan identical ball at rest. What is the speed of the initially stopped ball after the coll:fe+ma 2gk1 fsision?

  A very heavy object m7bymy68i8k d3ffh; or oving 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 object after the 3yfdh8f7 rbo6km8y;icollision?

  A very light object moving with speed v collides head-on with a very hev fn-2a-7wyln avy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy fw-l 7n -yn2avobject after the collision is

  A red ball with a veci9ksfp,p3;(8;t o vclz 23iiyee kv:locity 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:vt9zcpk e3csk2 o3i( pf;li,y;i8v e velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very ligh,tdw6d8fw 2r*cyemlpr z.s3m f/f*1et object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely* *wd3fm d f ,m fw.espre1ctzly86/r2 slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is5jxtfw)t2 ce w3+ eou) conserved, then which of the following statements is tru 2w)x 3jtfec5e+u tw)oe about kinetic energy?

  Two objects collide and stick 6ne fj2md3-*h2dc vmotogether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides io7fi8 pqj.+pi 9iyxo i 8)w:epn a perfectly inelastic collision with ie9 8ofpq:iwipijp87) .+o xya
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 obj2oczk6/ex dcw-:n pq7ect and sticks. Which object experiences the larger magnitude of mom7/ dk62z p-wx:eccqo nentum change?

  In a game of pool, the whit :x1jcp4c0kz ae 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 fm vk5;fz6 * v8y1cgnugollowing statements is false?6mvf;g8n*uc yg1 v5kz

  Which of the following is a false statementkpcgunhmq )7/w6mouwp+6yrs4r ( +;f?

  Tightrope walkers walk with a long flexible rod in ordeqm*esqm7sm;qydb93 -1l .p c2st,tz vr to

  A plane, flying horizontally, releases an :agaex3i ,x( bomb, which explodes before hitting the ground. Neglecting air resistance, the centeaigxx(a n:,3 er of mass of the bomb fragments, just after the explosion

  Two cars collide head-j:tnn9 o,x dt,on on a level friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What j,tt9,odx:n nis true about the velocity of this system's center of mass?

State Newton's seconpf ;9j0+ rlxf0fxew/t e9chk*d law for a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 igr2 h4 u;icde.ns(r3 mxx44t m/s?

  A 1200-kg ferryboat is moving svv3d* iiom(bc 535a(xb v5iueouth at 20 m/s. What is the magnitude of its momentum5b iv 5m3i(3 va5exb*(uvod ic?

  A ball of mass 0.10 kg is dropped from s7x k/6f5yue h(iway1+db nu 6a height of 12 m. Its momentum when it strikes thb7 + fdwx1 6n5(kye6i/uya ushe ground is

  Two identical 1500-kg cars are moving perpendicular to each other. Ony 16xa66jfr jte moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. Whayfr 1666j axjtt is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally alm/ b(/+ oqyblt 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change y/b/om lqb (+lin the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by a rasaui3 m6 uqvk2)w ut-101hnb tcket causing it to rebound in the opposite direction at a speed osu3q1umtkt u6iw01-)v habn 2 f 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine y yta4:qn+ej4 (excluding the baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal directiot4ejq4y na+: yn. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the spaccuu uk d/w,(8elcyi ++e 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 ofc(+e / +luwk8dyu iu,c 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 approaches head-on a large npa)+tt *) douobject at rest. The small object bo)ounat+)t d*punces 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 9 uzp: mu7n9qwfriend (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 toge quzn 9u:7m9pwther?

  A car of mass 1000 kg moves to the right along a level, 1mfqx l.rjl;r +l 6ft/straight road at a speed of 6.0 m/s. It collides directf6;f ll./qtr x+jrl1mly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 mlndq40qglr z4gesg-mm4y,ge3 ; 1*p n/s runs into the rear of a stopped car that has a mass of 1500 kg y;p 3 g,40ll g1nqm qg-rd4*gz nees4mand 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 along a leve/n/hlcsez h2 (l 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. le/(csn/ zhh2 What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rol*5whsi+ruekv 9.+iwhls with negligible 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 in the uhkv+i*.+ 9 wiw esr5hcar. How fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg v(g dfo1g: uy sk/ iqfnc;a--1log at the rate of 0.80 m/s (with respect to the log). With what speed dsgcfn -1o:uv ygd1f i-(aqk;/ oes the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The ltv i/km; ,r5ni;g/epforce suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the objevg5li/ ;p , mkit;ern/ct?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. eyh3d :2qg( zxWhat is the object's change of velocity?x qzh(:yd e23g

  A 2000-kg car, traveling to 7n:4; r fpdmoithe right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the carfropn im74:d ; exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the blsx). dgk1 ot+zn3, rgall back along the same path, and at the same speed. If the bat was in contact with the ball+o)dg, 3n.gl1z s rxtk for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top.jzru 60g47ojz dbtbe u(e 11.t The speeds 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 o6utte. ur d j4jb1(zbz0g1 e7and 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, fires 50.0-gram bullets b3l:/nmnekl-, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the mabm3: n/el-k nlchine gun mount?

  A fire hose is turned on the door of a burni 5n4 sshr/x5ek: v.l d:lag4hgng building in order to knock 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, assumin g .:enr/l xd5 s54:lshvakgh4g the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the l249pj tvbfv6 rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't sp 9fb 6pvlt4v2jlash 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 3a1rivp*5wo 9thc,6 qh.0 s, when fired straight up. What average thr *ohph5 w9,tv irqa16cust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are o :l1m *gvef3oinitially at rest in outer space. Th*lo3:mfv1ego ey push each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the *t*3 0 6rq d-ahbraqa+*t nusrjlv:d(right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object dn:rtvrauj *+**dbq3 l qhaats(r0-6moving 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 b a4y gj:em/c8of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity /:a8ybe4jmgc of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is firedoncqsiuq57h6lnn; 6purd j,, :1 ye 5g into a 1.00-kg block at rest. The bullet emerges (the bullet does notuhqp6iy567l5:ojrc1 g e nd,nu , q;sn get embedded in the block) with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at r2)( -sn) kxsbftmc b b(vp4* r:mtaju5est, is struck head-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 will the alpha-particle ha vb(fs bmx*t mk)425 u-( p)a:btscrjnve after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides a.h 8+fehdi 04+aa9-r1b+ hsvwlw htqhead-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collisih4 9hw0i-tdr+s hbev+fa1aw l 8.hq+a on?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collides (s(;iwmk+wgu 3sgvm21c7f hc head-km (vs(f 3 hiuw2w1s;ggmc7c +on with a 200 g 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 speedb on-6::awx t )x1toio of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, wh6x -)::oxbio1ot nwa tat is the speed of the masses after the collision?

  A 2.0-kg mass moving to thvm lk6jw )dv8 qo9(5xwe east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How 8d5(9vmqj )lwo6kxw vmuch kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikew *(tq ,(v7ug9.wqkkl ,7 8qzgn bkxjes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic coe qku (kb7z,q jg897 gxkn t(q,.v*lwwllision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a hm 4 tnzl-z.bdlh+qisvh0/5 +vertical direction buries itself in a 2.4-kg block of wood a resq im5znv d+hhzshl+-b .4t 0l/t directly above 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 90.0 km/h east collides with a 3000-kg car traveling( 5u**m+ to; eprndrsh 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 co+*r;nrp *smu 5etd(ohllision?

  A 1500-kg car traveling at 90.0 k/ftz-yfq8(c 0.lwz rkh ma() qm/h east collides with a 3000-kg car traveling at 60.- 0zq/zalwycht (f8 )qk.(mrf 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?

  Two objects move on a level frictionless surface. Object A moves e8qsk5; wj9ge/bny4wh *e+vy k ast with a momentum of 24 kgm/s. Object B moves north with momentum 10 kby5g;wv k4y9 eweh 8qjsk*+n/ gm/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 uwcyhoh/8vg j ozx g 38u5+w40North with a velocity of 4.0 m/s. It explodes into three fragmevu 04hwy3zhxu g8jg 5c8 o+/ownts: 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 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 sar**d ;z(o+ui6 qs rniits at x = + 21.0 m. Where is the center of mass on o (*ai z+ ;qirr6nsu*dthe x-axis?

  The center of mass of a two-particle sb(t: e:bdyoithnf :/5ystem 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 second mass of 3.0 kgtobif:h:: dy5nt/e b(?

  Three masses are positioned asfntr/d)cr r8::)rjqz follows: 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 of thecrrt/:nr) 8: dq rzjf) center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located a 7eof,f-g:, 9ktb:tm( ozguibt (0, 0), (1.0 m, 1.0 m), and (2.0 m,u,gb bo7e:z9i tt(ofgmkf-: , -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 / /n xhlcda4kc536yap 1.0-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 oaxc6y kdh/l pn/ c5a34rigin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg including thu u+ h0kzfh0 9dziueom/rd2o0txc +;*e foot when the leg is stretched straight out. Assume the persdf;kc0u*d0ox2uz0 + hr h mt+o i/zeu9on is 1.60 m tall.