What is the SI unit of momentump6/c k; 71 bmpkyvir)w?

  When a cannon fires a cad-0fwp8 iub rl,muj( (x(6ssvnnonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at coh 9e//s e/ky gwjv/e-3xa.p2 hky x*emnstant speed. The car is open on top. A large load of coal is suddenly dumped into a9e/-e2k3xekv/w xh p/y j /me *yhg.sthe car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What ha-;m5it:etr: ,ie p ydgppens to the velocity o5igm t-dytr p,ee;i::f the sled?

  A rubber ball and a lump of putty have equal mass. They are gkp n)t.ir2+o thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which+nio tk.)r pg2 objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you repreex k85evdvs5* eizjlb5qr9vy1 s1)n, sent its kinetic energy in terms of these two quant nze5iveq1 s*k5r dvs,xv8 5l9jb y)e1ities?

  If you pitch a baseball with twice the kinetic energ1s; r,awpq yso w9/nm6y you gave it in the previous pitch, the magnitude /py ;9s wa16qon mrs,wof its momentum is

State Newton's second law in termru+pi *biz./dr5e p2fs of momentum.

State the law of conservc95ui1vnc1y 4a+lf,w vob z e-ation of momentum.

  The area under the curve on a Force versus time a17dgtq:*+b j vi/p 5h;yzwcq(F vs. t) graph represents

  Which of the following is an accurate statement2 i/yj8 5su i0ypel)9o-igndf?

  A small car meshes with a large truck in rp lj+)09 bxyla head-on collision. Which of the following statemenl jr9 )l+x0ypbts concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the syr/m,zv; hih o -ah9i-ame height, and rebound off the floor. The red ball rebounds to a higher positir/y; -vi9,ho-ihzahmon. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving ea 1.zbabol (irw02l5 uost at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounc5 o (2l0lwaozuibb.r1es back to the 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 othe-(t6)n5yz oa4 i9cpd.qhoyy1v0am bkpie. 2 or. Linear momentum

  A 3.0-kg object moves to the right at 4yxm tk 5juf6uvzzy9l . 4:j+3x.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which st+4k.yzuuytjx6z f m9v 5xl:3 jatement is correct?

  A 100-kg football linebacker moving at 2.0.vcsn: .lidjl3m;m h.lwc :8g m/s tackles head-on an 80-kg halfback.lj; wm: m.3c8si llgcn. d:hv running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, the )n tq+13qacbavd(p6d5jy ia(n which of the following statements is true about kybq3vdan t1) a (+p5jcq(6dia inetic energy?

  When is kinetic energy consel*nr0 8(txok9 sdgz k7lfi,7yrved?

  In a game of pool, the white cue ball hits the #5 v8zvmmz3 +a1,ok+w h5fc9dl z tpf3q/ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. 3v3thlzp 8/c+ 15 f+mz,mvdawzqo9fk The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a xil)+7kpu a,j heavy exercise ball at rest, the beaci j 7ka)xp+l,uh ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision wivspui5,o j7 z3th a stationary bowling ball in a friction-free environment. If the colli3vpz7o5us,j ision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed o zs1 .e acng5 8fn l) ueu.x30zaoq6x9g3/enwif 5.0 m/s collides head-on elastically with an identical ball at r z5e8s3ag0 1xxiw9nl3na ) e.u 6/qncu.zeogfest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very4ws39i 5dp3ntkvs2iyp 82m sj light object at rp238n9k 32 t js4msviiydswp 5est. 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?

  A very light object moving with speed v colli0/8kqx4*dgzb c w/vinpos h0 4des head-on with a very heavy object at rest, in a frictionlep 0c*/kb 0n4hz8qgd/ vxw so4iss 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 yellow ball of eql k+w-j*a cyf-3y a2+eyu6i ijual mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball ac6+wia+ey-f 3ly2ju ijak *- yfter the collision?

  A very heavy object movinz55midq i pn8.g with velocity v collides head-on with a very light object moving with velocity -v. The com i5z.ndq i58pllision 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 is conserau2t w)vr9: ezved, then which of the following statements isew9u:at) zr2v true about kinetic energy?

  Two objects collide and stick together. Kinetu t);y lwrny)x )muud v5/:anca2 *xbh 5fkv4,ic energy

  A 3.0-kg object moves to the right at 4.0 m/s. Itzf(vi4k;x6ek8 g hr)a /tz7ag collides in a perfectly inelastic collik (rfexhzizk78t;6v/g aa) 4 gsion 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. Which orcok 3o x(w3 qw2sh,/pbject experiences the larger magnitude of momentumo3/kx qp o,w3rh( 2wsc change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at a +.7f)npm ugya6idc9t$35^{\circ}$ 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 fo ycbd v -mfyni7mpo:2/ i)c(yoh 9h:0bllowing statements is false?0m pmh(iicc)/:fov:9yd y7nohy 2b-b

  Which of the following is a false statemmzh ho/ (55 )2ixhi4ftf3fbnsent?

  Tightrope walkers walk with a long flexible rod in o:qn(;hr gwty refb*lie;36;y rder to

  A plane, flying horiz-gd4jy-acm5f:(i j tzontally, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, thgzi-:amjft4 -yc5j d(e center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. 8 yh exexsnt;gf ,2*(kThe collision was completely inelastic and both cars quickly came to rest during the collision. What is true 2esn(f e8kxxg* yh;,tabout the velocity of this system's center of mass?

State Newton's second law for a system of particles *swfm0 g):qpe.

  What is the momentum of a 2000-kg truck traveel: 56ir5k*cl+jxu 2 pwok-aeling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitudeq9iiy5 b2d5p u of its momentiuq5b d2 ip59yum?

  A ball of mass 0.10 kg is dropped from a heigh,dhlnj3g d50bku2nw, t of 12 m. Its momentum when it strikes the ggj0 nd b5,n w2hlu,3kdround is

  Two identical 1500-kg cars are moving perpendicular to each other. One mov*ep7 5 -hudkzgk4jwz65xg 9umes with a sm uu-zz4he5 6 *xpkkwgj 7d95gpeed 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 *ewwgxcs,p9xfop)6w8 v n;,w .10 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in th6x ve,oc89sg* fpw ww wxnp,;)e momentum of the ball?

  A 0.060-kg tennis ball, initially moving be:dsfz vt:z6 1se)l.at a speed of 12 m/s, is struck by a racket causing it to re):lze:f.bd 6zs1t sve bound in the opposite 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 x+;hk3b2qw kwmp,3kton a frozen pond. 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 pitchm hpk3 q+w3kwx2tb,;k ing machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outsi2qdfs(kl+ x:yf1 jd, .kfg.q bde 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 ,:( dksyqk.q1f .+jdfbg2lxfof 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 ob:1-vre65a qjt,g **:wb edsodcyej* iject at rest. The small object bounces straight back q56ase-r*e*y vjd: i oejw:cdb g*,1t 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 gpghufcpp.4tak-qp-))zk0p: dy+ n5 oreet your friend (40-kg mass), who is stand-)cu.- k a:pp4 5gphndk)z+yo ptpqf0 ing 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 c zchxsdz )uu,- (d3t9wdzb+5 speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collzdcc+5s3(9w-)u x,h bz dd uztision?

  A 1000-kg car traveling at 25 m/s runs into j*l .uw/*xu7tg ei o6vthe rear of a stopped car that has a mass of 1500 kg and they slwg j 6ixtuue* v7/*.otick together. What is the speed of the cars after the collision?

  A railroad freight car, ma*m; n y 6;smsg6sn,nl s3 0wo91vhbnaxss 15,000 kg, is allowed 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,ab ;mvo1wgn;nmhns,9* 36 y0lssn6 sx 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 n y;fpn9u97d gss 2y,j2*doqbjegligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance 9*u2dn s s y;yjgq 97dp2ojf,bof 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 rat tys/xgg/zz. jpsw5 7v30k d0ge of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to 0 37d/50/jzgkstx vywggzp .s the shore?

  A 4.0-N force acts for ;rppvf+ .o sn tutj2)33.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by os ftpr ;u ).2jp3+vntthese 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 obj9udo qti ;l u:i/s,2mcect's change of ve 9iql comsidt2,;uu/:locity?

  A 2000-kg car, traveling to the r tq vq5 jy4;i,db31ceaight at 30 m/s, collides with a brick wall and comes tt 4a5 i,dbjcy ve;1q3qo rest in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched t 8el-6 pj*y;yiqf5 iddfbl5n.o you at 20 m/s. You hit the ball back along the same path, and at the same speffqn5b ie 6d .8*p i5jldy;-lyed. If the bat was in contact with the ball for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a tabv5n,jb)z 3cue le top. The speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0bcunze j3v5), 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 mas/1w) 7uh.) (me-rvoxvx w tvqzs 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is eo x-.(/uvv wvr7 )1 zqtwhm)xthe average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock the 3 drx;pc5qyl,jwy(k; door down. This requires a force of 1000 N. If the hose delivers p ,(rdy5xj;;y k 3lwcq40 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 drai loy7o5d-hv)g8 1tplc ;vgil.f c 7yj6npipe at the rate of 120 kg per minute. It falls 3.20 m to tvo67l-fo) ;l dpjvgy1 7h cc5 gtl8yi.he 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 velocity off s(h o;sqnot,rrkbg kh2)v5ba)5 * c+ 40 m/s after 3.0 s, when fired straight up. What average thrust anr),5c th gv q;h*bokfo)s+brs2k5(force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are i 6w/ez3 rtmyl;nitially at rest in outer space. They push each other apart. What is their separatlt;6mewy r 3z/ion 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. It collides in a pel(tv6stw3p o-rfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the colpotl t6 -ws(v3lision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction make lb 3azdxt72y2k +urj*h)/rvys a head-on elastic collisio 2zl)jahbtuk 2xry vr7*/3+ydn with a 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 block at rest. The bulei ye6;cj6ok 2let emerges (the bullet does not get em2o6; i6eykj ecbedded 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 rest, is struck head-on by an alpha-particle (whw-kn8t)tcf f n:n r;/hich consists of 2 protons and 2 neutr w/8nffc;nh :rt-k)tnons) moving at speed v. If 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 head-on with a stationary be/x fkp(6xb*qvi-j s -all of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collis(* qx b-k/i6 xsf-jevpion?

A ball of mass 400 g mov0( 8psk0 skzqn;l y2uxing toward the east with a speed of 3.70 m/s collides head-on with a 20 x0knk(0s8;upl2 zyqs 0 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 speed of 5.0 m/s. It collides head-on wf 4 h5)wyzn3snith a 3.0 kg mass at rest. h3 sfnw)z5yn4If 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.mtilx;q,1t ppn5jn6e91i 5u+w) m vjzfz: 0yo0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?xio z1y01q+ jmztei6)f, up9lnv :tpnj5 5m;w

  A car of mass m, traveling with a velocity :86v3z j*5t,c -yutiea+ef ters(x9itoa v*pv, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this headia*ef, 8 6e3t-rtx vz cae +j:osvtp5*i9tyu(-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet travelin s3j( qruqvulvx7a9)*g 213 m/s in a vertical direction buries itself in a 2.4-kg blov(j qs9v aqx3* uu)l7rck of wood a rest 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 collide9bm 3oo;j. 97tgechnys with a 3000-kg car traveling at 60.0 k9 9.bmt 7oy;ehn3joc gm/h south. The two cars stick together 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 ca(m ngh3p a2zkn*ol6nb5je *2rr traveling at 60.0 km/h south. The two cars stick together p3(n zbr*ko2eh6ajn*2ngm5 lafter the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a*gpa3kp7 ;dtd level frictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with mom37dtpkd;pg* a entum 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 moving toward the North with a velocity of 4.0 t-8zudb bq(k3 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 is the velk (ub -zd8tb3qocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.dx/9dusd)wo3w gsjj ht+k6fjz 0*+r+ 0-kg mass sits at x = + 21.0 m. Where is the center s+d9 /*j3 sut kgjo)+rj+hdx60w wzdfof mass on the x-axis?

  The center of mass of a two-particnt6pz e9:6y acle system is at the origin. One particle is located at (3.0 m, 0) and has a mass oz e6n:6pt c9yaf 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), 2.0 kg at (2.0 a)av8a8h: kpj, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center aa 88jhkv) p:aof mass.

  Three masses, 1.0 kg, 2.0 ,1ts.yi crv0j kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), andji.r tc,1y0v s (2.0 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 1.0-kg mass is positioned at (12m56ime8 rd,ul , 0). What are the coordinates of a 4.0-kg masm u5el6md8 i,rs 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 inclu i82neo oqx1mdthq1u(7q5 .gv ding the foot when the leg iouitgm57xed1q128oq h.q( vns stretched straight out. Assume the person is 1.60 m tall.