What is the SI unit of mome:o/ru 1 5c7oyjn+sej entum?

  When a cannon fires a cannonball, the cannon will recoil ba8/ vcx-arw- hvckward because the

  A freight car moves ;s tcbf mn-dbd 4 :psw;cmo/28along a frictionless level 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 the ca dbcs/-f;m:4m bc2no8t p sdw;r?

  A child falls sideways og ,tm0tbgart5.yo/ -wff a sled while sledding on frictionless ice. What happens to the veloct a/bwggo5t t0.,rmy- ity of the sled?

  A rubber ball and a lump of putty have e 8jxrv7df1 r euz,y0s:oxr:c4 qual 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 sti4 rrj1 ydrxfvsx70ce:uz,8:o cks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momk*8s3md z: asaentum p. How would you represent its kinetic energy in terms of the3 a*s:samk zd8se two quantities?

  If you pitch a baseball with twice the kinetic energy6 hbmm+) vm1d p5dkro4 mb7*ax you gave it in the previouk 5bhpoxd61m mv*4)mr7 b+amds pitch, the magnitude of its momentum is

State Newton's second law w/(h7:-vghwk)mzc6 kr j *wal in terms of momentum.

State the law of conservationois(7. ta24)e paz.pub+ xlaj of momentum.

  The area under the curve on a Force versus time (F vs0dj+ +7b jwkd7flk5w s. t) graph represents

  Which of the following is an accurate state t s9z.a3nvcd (9jv(g7xm1ucdment?

  A small car meshes with a larg6 5y/kqr5 lyx86 ioyake truck in a head-on collision. Which of the following statements concerning the magnitude of the average collision fok y6y86qri5ox5/ ly karce is correct?

  Two equal mass balls (one red and the other blue)ro2v nj 8:jkus+/ 7spj are dropped from the same height, and reboju:k+ 2jsp7 jsornv8/und off the floor. The red ball rebounds 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,bf4. ttvp6 /iitf:bi 0 collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowlf/bi6 vpi0 4.:tttif by to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and b:j u+xu (jscw.ounce off each other. Linear momentum

  A 3.0-kg object moves 0rnl,g v r+b;qto the right at 4.0 m/s. It collides head-on with a 6.0-kg obje+rn ;,l vqg0rbct moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-onob/gi u/) 7 akj/-kyth an 80-kg halfback r gj)/ k/b-7oi/uhy atkunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conservksd wuc /scyd881c;)wed, then which of the following statements icu /sd;c81d yw s8kw)cs true about kinetic energy?

  When is kinetic energy conservegb*+; 0toab+2u7tt z7x tvp zud?

  In a game of pool, the white cue ball hi edmpw 7u+x*d1ts the #5 ball and stops, while the #5 ball moves away with the samdpwdx 7mu+e* 1e velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with4)r /)akiigpo a speed of 6.0 m/s collides with a heavy exercis)i )rpg4ki /aoe ball at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head joc15*x6* t sd*tgdt+d+pyh d-on 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 after the collisionh1sdp o+tdd* y* 56d jg*ctxt+ is

  A rubber ball with a speed of 5.0 m/s collid7ev38w ru9li gq+1wdn)9qkl zes head-on elastically with an identical ball at restn l7 iq3e98gw1qrd+vul )kzw9 . What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed vu5f(oklz cr. 3n0dz6 v collides head-on with a very light object at rest. The collision is elastic, and there is z50v(3uoz6 rn kcdl.f no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object mofrv)d, lu78q.81em d v8gjvvjving with speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfecr 7j8u)g q81jlf8mvd.d,v ev vtly 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 w lcqbx:(-ajt vk/ 47 wb)pdc-tith a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow bal/) dv(c 7-b -bp:ajqtkxw 4tcll after the collision?

  A very heavy object moving with va44 +7chn1qdv,zqi +n u9 atnuelocity v collides head-on with a very light object moving with velocity -v. The cuiq49 a4n+unn1t+q7,z a hc vdollision 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 conserved, then which of the fo vecl: *kyg8:kllowing stav 8yegl* kk::ctements is true about kinetic energy?

  Two objects collide and stick together. Kinet/3*r lw vmomc9ic energy

  A 3.0-kg object moves to the roo *zslxc d0 5*kr33vcight at 4.0 m/s. It collides in a perfectly inelastic collision wv3od5 l co*rcs*3kzx0ith 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 dh eb jq (j8d 847wl3cato;9coi8kqf*and sticks. Which object experiences the larger magnitude of momentum8icl8 b(kced9d3 o jq*4hjq7wao; ft8 change?

  In a game of pool, the white cue ball hits the #9 ball and is dfjuv/gx1vts *+29o1. fkay hw la4a( 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 f1 223qw ro j5f0acunoqollowing statements is false1 fqqn5o0 3c2urowaj2 ?

  Which of the following is a fakrx xs3 ,y(8vclse statement?

  Tightrope walkers walk with adagtq+iw x3 bi;69g05caj:zz long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hidd:..) x eni6m-,ed2vake hie 9xpqyluq.g+3tting the ground. Neglecting air resistance, the center of mass of the bomb fragments, je qd q :9 aie.xien. p mdk)-y3,6.2e+udghlxvust after the explosion

  Two cars collide head-on on a lw*eyg6he39us ,cbh 9 *joal ;ievel friction-free road. The collision was completely inelastic and both cars quickly came to rest durino*sy;ulh*gw hj99e36i, bcea g the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of part7;tw r 8) ivy))jk8 cxb5wngqtsq l8t3 7hvv6qicles.

  What is the momentum of a 2000-kg truc) ib+ nc2hb(tgk traveling at 35 m/s?

  A 1200-kg ferryboat is moving south p dd xsqc*m4n)hu3 s+ue k5q8o neb71-at 20 m/s. What is the magnitude of its momen k 8s-7 ep5)q*3 1uusdn4qome+xnbchd tum?

  A ball of mass 0.10 kg is dropped from a heightqkc5w spqgdp-7 ydd :g42ho;7v*qn 7c of 12 m. Its momentum when it stri v-cp d7*o qqgk7q2dc;p4w h :5n7ygsdkes the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves m* -jfw.iduu2with a speed of 25 m/s due north and thf*-mid. juuw 2e other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontallp4fd)jw;a y :j-xg:d fy at 30 m/s, strikes a wall and rebounds at 24 m/s. What is thex d :wyfdp-g 4;:fjj)a change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed oqhc0 *q;1 g4lkak i:pke:z7j yf 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a h:zi4qycg:k 1 a7ep 0q*lkjk; speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed onhry,) /g2cp;r; k jj-fud5nty6gw6 mkp;q ag7 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 t; gr ,u6qd;f- aj kp/2jpgr76nyk5 w)h;mytc ghe pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walkinntf ,q2uzi 3;dr.,vang outside the space capsule and is stationary when the tether lin3fr, vd ztin.n2 q;,aue 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 speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object a4qvhax2zb;,g br.ze*30; f(m h equgqt rest. The small object bounces straight back with a *eq2bghmufz ;g (.z0v3xa 4,erqqh;b 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 f x+q xm4lu,4bt(bi:paqn+w) criend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what sp4atqun x bmi:cb 4( +xq),+wlpeed do you both move off together?

  A car of mass 1000 kg moves to ;v99l wo+ ffa0xug9i1nod /hathe right along a level, straight road at a speed of 6.0 m/s. It collides directly o0adnx9/1 oi;af f +h9gl9uwvwith a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at tcov ylrj4c:n)xw3 +925 m/s runs into the rear of a stopped car that has a mass of 1500 kg and t cn4o )l:t3wcvy 9xrj+hey stick together. What is the speed of the cars after the collision?

  A railroad freight carob/r *(8oqb0y;p ;ghgdqclh 7, mass 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, initially at rest and with brakes releabh;r ; 7l/*dqo(g0ybhcoq8pgsed. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls wtmatpf (ui(y.jsk2hvy(;;tm+i/- hl ith 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 car. How fast will the car be moving after this happ /j(ta-vituy2 ;m yi(k.hshlfp+;tm(ens?

  A 60-kg person walks on a 100-kg log at the radg/w7z9pstp6* hk r* n2 )pqhmte of 0.80 m/s (with respect to the log). With what speed does the logmhh n/6pspk7 g q*t9) prd*w2z move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. Theyw3-gmwvn. k * force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to *gkmww.3n-yv the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. Whatip7uqz:bwtwhq6eu gu,q8k) e0)f:4x is the object's changex)7twqi fu6 u8h:0zb:)4 ,qqewgukpe of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collidy kiv;8 s;4hcees with a brick wall and comes to rest in 0.20 s. What is the average ye ;sh ;4c8ivkforce the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the balv* -s6avvit6 *t4o;4tr: 8zrcxyyw ore)wds.l back along the same path, and at the same speed. If the bat was in contact with the ball for 4rw6t to -:ar6 *vv zsixd;4csyw.yvre) 8t*o0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball right befor2ptq qs73 0+kwqo)4o* chsklpd /vou 7e and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If the collision pu4 sk3*cwdpoq hoo+s/ lk)77 qq v02tbetween 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, fires 50.0-gram bullets, with a muzzle veloci da4t8t+srj,;mcv3b4w auj 0wty of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gu+,348wt u dwvtr mb0sj ja;a4cn mount?

  A fire hose is turned on the door of* 1e6e9 ra6hlavs0kecb;qxi1 a burning 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, assuming the water d*61ia q v0cbl6rxe 1k;hea9e soesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per m r8(wwhal,: kvinute. It falls 3.20 m to th,kwv l(:ahr w8e 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 of 40 m/s 7l1twhkvx)hu nlm n:s n; m-7*after 3.0 s, when fired straight up. What);u7mk *whnlm71 nxv: -ltsnh average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially i9d*3dl iyov2at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has moved*i 3iy9od2l vd 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s:g x2ro.ss y k l9ua--(fwube8. It collides in a perfectly el .usga-82rxf kw-l(so9ue: ybastic collision with a 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/s in the +x direction makes a hd ft(ew6sn(p)ead-on elastic collisi)(nwf (tsd p6eon 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 is6dn 3 irws-g-j fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) wi djr3nsg-i w-6th 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 ao(jx jz)*c;w alpha-particle (which consists of 2 protons and)jx w*o;( zjca 2 neutrons) 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 hevu/3rlxvzkn (2d*t 2n ;fal 3ltrri27ad-on with a stationary ball of mass 100 g. t3(rl rnnu;2z3vl vtl kd* fi2 ar/x72The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collg8)2 zfm fw3:nzv a4p/9m nfbkides head-on with a 200 g ball sitting at rest. The collision is perfectly elastic 2ngz8p9w3 mnvmk4z/f)ab:f f.
(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. Itghgne* b39d -y collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelasticgh e -y*gdn39b, 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 chygh :0 hft.5z2dco8x1 p( fmmollides head-on in a perfectly inelastic collision wi.x2 1 t508 mz: hgfyofpd(hmhcth a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling wiok-.mx dl88lu th 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 initial kinul.-dxlm 8ok8 etic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction bu gy-bm-kcr:*uries itself in a 2.4-kg block of wood a rest directly above itybkg: r- *c-um. 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 30fr 2 sfwi*qt3700-kg car traveling at 60.0 km/h south. The t q*3rtwf sf2i7wo 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/l 4 u hu b2qm968ps0rphk957qf +dzuoph 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 mot7ur 6kpd09s u8qf 9bpq2ohmhp +4 ul5zion of the cars after collision?

  Two objects move on a level frictionless surface. Object A mosao:tzhe 5f a u8psx/;eq1j-4ves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of t/o5 tfs:ah s ;8eqx-jp 4azu1eheir combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with 2:*:/n5+lmzwe t1hs b t+pu 0q.vst b: gdzlmza velocity 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 eastbd gmwu 0t:1vn+ bmlzs l:z2 es/t.+h*pt5:zq 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 q 5aam16;6z1xj gngyb10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on51yz g6jbn1g6axq; ma the x-axis?

  The center of mass of a two-particle69zoi.huhrt :sism s4l52p r( system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the.45ih hs pu :i6trs9sorz2(l m location of the second mass of 3.0 kg?

  Three masses are positioned as follown+ tk7 add;nf61 :ybcjs: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg+n ;dja nt1:dbc6 y7kf at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and om-qfiss*, lr,g(bou-02x b f3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2i o,gb-,q0 2 lmb-sxf*s f(ruo.0 m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, l(wnq +;haru9gj s( (3p eh(pd8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg n(qu (jw l9(;(hapsr+ dheg3pmass 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 leoc)b9+m6,br g hzy+oag including the foot when the leg is stretched straig bm96+y+,ozrho ba)cght out. Assume the person is 1.60 m tall.