What is the SI unit of momentih4-rp*e 0)dqf avn:eum?

  When a cannon fires a cannonball, the cannon will recoil bab83c9n9sz ;pwzv 60dn/td udyckward because the

  A freight car moves alongnv*2x nsm:a4gea zo 04 a frictionless level railroad track at constant speed. ea ng2xn0 :*ozmavs 44The car is open on top. 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. 2p yu(jaa6r j3What happens2(a 6ar 3pujjy to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown b8bakmyxf) qmg40o al-/w o30 with equal speed against a wall. The ball bounces back with nearly the sx-gw3b) a8lqb0ao0ymk om / f4ame 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. How would you represent iti(d a8mr:+5kbibv g9os kinetic enerimr8og dbb95ak:( i +vgy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it izvw*eokc+ex) )w9 v 1vx(3hfr n the previous pitch, the magnitude of ere)f+x9v(o )h zxvw*31kvwc its momentum is

State Newton's second law in terms of mome-om68;ttyjp ct so5+cntum.

State the law of conservation7cnvojk : 2mmv:m2o/z of momentum.

  The area under the curve on a Force versus time (F v1 sv,fe /q f)a+oyyh7qs. t) graph represents

  Which of the following is an accura 7 jpuoy)v1+tlfoqv,q ;-pm8y te statement?

  A small car meshes with a large truck in a head-on collctce)-nw,yqm 0, *xngision. Which of the following statements ccmqg* e,- t0)wncy xn,oncerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropp .p:ll;) -jh wecsoax,ed from the same height, and rebound off the floor. The red ball rebounds to a higher position. )o;h,- exsjacwl l p:. 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 sta(j.vr yqj8cc:tionary bowling ball. The Ping-Pong ball bounces back to the west, and they.q :v8j(rjc c 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 other. Linear momz0 *yr4tb7x8p ,rg xllentum

  A 3.0-kg object moves to the right at 4.0 m/0u qs;t 7-xx,pzqvuvl /3ytl i4 t-(zfs. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which3vu;(-4 v/l,zf0x7s zq-ltp xyqiutt statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackl 873)md :cq qpn 2dolfmaa-,fces head-on an 80-kg halfbackd,aq 2 cqmfd3ml -8cnfa) :po7 running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisil/ g /cf1mxn qryia*j )aw245z*fl z)non, if the momentum is conserved, then which of the following statements i1zj)4n/5l/mrznlfaxf) g cwia 2q y** s true about kinetic energy?

  When is kinetic energy conmmu v5d1pm63l served?

  In a game of pool, the white cue ballfe*3p .e::sy ci5ss8eai4dx p hits the #5 ball and stops, while the #5 ball moves awad sa iiexy:*84 eppc35f .:sesy with 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 collides wifclwf5v;c x 1;th a heavy exercise ball at rest, the beach ball's speed after the co; xv;w1f5fcl cllision will be, approximately,

  A golf ball traveling 3.0 m/s to the rigbr1)86ihr nhqbl5lub -1 ozxie /1+bght collides in a head-on collision with a stationary bowling ball in a frq e/6+iuirx)b 1lh18 obznbh- r5l g1biction-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 hea l,8mfm0v 7wps gf+ rn-,nx(oqd-on elastically with an identical ball af nvqp0,mxlw+mf ,g8 -(7 sornt rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides hea(i) miix,x 1htyp2ui8d-on with a very light object at rest. The collision is elastic, x8hti(p1 i )mi2u,xy iand 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 movi+7, /h.lo r x4ybvovllng with speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is r4yo,7v olx. +vbl/lh 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 headb y/rk0or;ge+f0 od+e -on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. W0 gb+fy e;r0okd/eor+hat is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a pr7- rq,r+blt very light object moving with velocity -v. The collision is elastic, and there is r7-b+rtl p ,rqno 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 /v-me 2d np ,ufiw- f*;eapa4vfollowing statvn4,ae p-uv2/w; paei- dfm f*ements is true about kinetic energy?

  Two objects collide and sticqtl9/, i7qsjik together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collil,rp,oqd rq ,2des in a perfectly inelastic codl, p,q,o2rq rllision 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 g4gxsz; s)x)d5qc6pdh/ w (wr a large object and sticks. Which object experiences the larger magnitude of momentum 6qd)5hgxr )spdg z; ww/c4sx(change?

  In a game of pool, the white cue ball hits the #9 ball and is deflec jq0gh )h3kf-qkiz8 f;ted 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 magh-l2h l :3h0ouxk , ,gn.ik8a:zphdisses, M and m. Which of the following statements is false?k:8, 2dl 3 hkhg:hgxi0,poizhn. ual -

  Which of the following is a false sta wnv.)upyms(mw )3f2q tement?

  Tightrope walkers walk with a long flexible rod in0wtcnn/ p-5debr)+s+ iyh3enbz7o9 m order to

  A plane, flying horizontally, releases a bomb, which explodes befoen.mp6 d)au-5; jjv q)ghhj i+re hitting the ground. Neglecting air resistance, the center of mass of the bo)6h)+ .mhg5i- pq dvjnuj;aejmb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collis)j3 ;(chnv jkcion was completely inelastic and both cars quickly came to rest during the collision. What is true about the ;jcvh )(j3cnkvelocity of this system's center of mass?

State Newton's second law fo*pxtrlw)a6gqz .6 *6xhywodkq c; ; u-r a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 m/b,q cbo,xaq-u w tq,*.s?

  A 1200-kg ferryboat is moving mthfjqx -w 4cm70no9* south at 20 m/s. What is the magnitude of its momentqw-nh7m4m* 0f9j tx coum?

  A ball of mass 0.10 kg is dropped from a .fw.x: y: ucuwheight of 12 m. Its momentum when it strikwxyf :.:uuw .ces the ground is

  Two identical 1500-kg cars are moving perpendicular to each other.l.:/u*i jmv)gy ( h-i1rrm ubo One moves with a speed of 25 m/s due nort1uy:*) r m.(l -iob/ hrjgvuimh and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0hhil 8()dj-, fp)wj ri.10 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the 8 w) ih-hrd(j,f)pj ilball?

  A 0.060-kg tennis ball, initially moving at a speed of jan0* a er j74vmo/m-s12 m/s, is struck by a racket causing it to rebound in rm/jen4 avao*7 s-0 mjthe opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (ex+09- moczslp.qc gl 6vcluding 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 direction. What is the re9c0 .lm +olvq6cgzp- scoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is spa y6zfvjb4-nl. ce-walking outside the space capsule and is stationary when the tether line breaks. As a mbj. nyf-zlv 64eans 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 objecys9b:4bzj 6sb t at rest. The small object bounces straight back with a momentum z9j6b4: yssbb of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice atw*bjbgclo qrii g97;/ k;/ pf) 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, w/bqr7i)9gigj cl /*;bpf;okwith 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 sp75vf kwwd))qsw) v tk+eed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 k ) +))wdwtsvfvqw 57kkg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that njjx4ml jjt4a1/ z:0+ky *vx) b dxp3rhas a mass of 1500 kg and they stick together. What is 404x1yk n:bjx*/d ) jjzpvjlrat+xm3the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowevb6)eycpur. 4)6f8mjihf 7 c pd 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 carmuyefh6fp6b rc8 j7) i)4cv.ps after coupling?

  A railroad car, of mass 200 kg, rolls with n7dqvy ih1ewmj7*xrp)tj3z 9-gx: 4g fegligible friction on a horizontal t jv9)1: * jwfp7- q37gzydhrmixx et4grack 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 g)l;l2a h;02r th dfr+0wsosq on a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to thot2l; dhqwlssrhr 02f )+0;a ge shore?

  A 4.0-N force acts for 3.0 s on an object. The3sd m mkqfm2887y zsa: force suddenly increases to 15 N and acts for one more second. What impulse 78fm:8s23kq mz dymaswas imparted by these forces to the object?

  A constant 9.0-N net for /fs40ugu 1agkce acts for 2.0 s on a 6.0-kg object. What is the object's change of v fgau/s1gku 04elocity?

  A 2000-kg car, traveling to the riguaoq8:s sp8 .m x0ftir 4ab)m9ht at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force tx 4 a .r0a9iptqm:8of)b8ussmhe car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along3axsj (, w5lwsdn,iz5 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 averagez i3ax (lss,5wjw5,dn force the bat exerted?

  A 0.10-kg ball is dropped onto a table top.b 9 :9plip.sbqd97 noy 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. 9:. dy9qblipbo9ps 7 n 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 35.0 kg, fires 5ib i97 rf8xve b-cxn260.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. xb- cxf v72ie9nrb i68What is the average force exerted on the machine gun mount?

  A fire hose is turned on the +x(l7kn uljn4wxuw+ lb:(b c9door of 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 th(njb(+9+c: 7bl4n u lxuklwwxe stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontashcw7kqv ;lvx1 84tgny(a5 pez oy+4 6l drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't sp4 5l48e vzc o;1xy 7gawknhv pq(+6stylash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40. v0rjy4 p yjl53r(rne m/s after 3.0 s, when fired straight up. What averrlvj .e yp05y(rj4n 3rage thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer r.6g7 n9jp tltt:nq 6espace. They push each other apart. What is their separation after the lighter astronaut hg 6 6ten9 lp.nj:t7trqas moved 12 m?

  A 3.0-kg object moves i72xblhpvl).1b5reh t-7o cy to the right with a speed of 2.0 m/s. It collides in a perfectly elastic collision wr hl-blo72c)y51tbx i .vhp7eith 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 velo fh )f)6agcap 4zcs.i8city of 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 of the 0.10-kg object sa)6 g)pcaz8f.h f ci4after collision?

  A 10.0-g bullet moving at 300 m/m7;7gx yp ja.cb.e ih9s is fired into a 1.00-kg block at rest. The bulhp.a7ej.;x gyc79 bi mlet emerges (the bullet does not 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 rest, is struck head-on by an alphat0-q 8 m/ r4ekvejmpa,-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 vjaet0 pm4/ e,-8mqrkhave 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 statio)n t zo4fv,slv9jb )u.nary ball of mass 100 g. The collision is elatz4j)sl) n,ovbv9 fu .stic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a spe 3 ksmg9pica oz-c1,*ked of 3.70 m/s collides head-on with a 200 g o kz,p cica391- skm*gball 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 5.0mx 3n3xvx okn a5y xo:4)u oh0 ea)9*loy:.lic m/s. It collides head-on with a 3.0 kg mass at rest. If the collision oxo9 c l:.e xx )3)0ah5vi*4on :yxoy unak3mlis 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 4.0 m/s cm ib7)padjf;,,6sb vc9neu2v ollides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic 9b)cn b2e,dmu76;,vvsf i ja penergy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked st1 r-za1)r;4,gmega a9 n rl4eyg 3qnsaation wagon, who's mass is 2m. The bumpers lock together14g na mr1na;-ge9qas4g3ye,zral) r in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in g 6l6*iqfdpk wrxt*7-a vertical direction buries itself in a 2.4-kg block oi7krq*-t6w6dlfpxg * f 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 94gboqt4dd2wr:4paz 6 g0z9ty 0.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togetgdy2gab4t : 69zd4 q4p0wrzo ther 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 collided g nk0sz7tgqqo).*8r s with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Figogtrs nq8q )g*07z.kd . 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level/- r an0jeunw. frictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. W0 ne- /jaurw.nhat is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving to8bi .d-a3zb/j-cgrf2blj yk7v :lx tb 5o5 /zxward 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 m/s; a 4.0-kg fragment moving east with a spee -la3lyx:bjtr.z5ic/g bfv -8j25o kxbdbz/7 d 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 thege8h7(9 n iyx vc/l+cp origin, and a 10.0-kg mass sits at x = + 21.0 m. Wherx9 c /hl+c(eig87pyvn e is the center of mass on the x-axis?

  The center of mass of a two-particle system is at the or-oe8hmc ,u:( h jhykp,igin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the lo,:je- ,8cukp(m yhhoh cation of the second mass of 3.0 kg?

  Three masses are positi)u9 4u ni/17gaus zlisoned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg a9 uuiza1lgu i)/74ssnt (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.2rma0 ck3k1v/ n(kygj p.s6aer+zf e3 0 m, 1.0 m), and (22yv3spr1z0+g3neka k /fmacrkj .(6e.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 37u:vays0vu0m/bc eqy5q2i i (0, 8.0), and a 1.0-kg mass is positioned at (12, 0iy5a7 yuqqv0m b ucs/2i: e0v3). 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, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg inc.ag qtwqmf8+8luding the fq +mqf.tg8 a8woot when the leg is stretched straight out. Assume the person is 1.60 m tall.