What is the SI unit of momenu1zx(rnem7b )tum?

  When a cannon fires a cannonball, the cannon will recoil backwardr d(gudp,rpln86dg - / because the

  A freight car moves along a frictnl0b1uw)( ij 04qa:fo rk*c vmionless level railroad track at constant speed. The car is open on top. A l4 c: krw(vq0bn0uif1j*amo)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 frictio.f:9u m aiz. njbin3r1nless ice. What happens to the velocity of the sl.jznn13mr:afi.b i9 u ed?

  A rubber ball and a lump of putty have equal mass. They arelndc0 qj luu :e:052cw thrown with equal speed against a wall.c50u02d un qwlejc:l: The ball bounces back with nearly the 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. How would you represent ix 0 sv1f p)r:v6g6bji bfjor.7ts kineticb6 vj jpgb.i1r r706v)xo :ffs energy in terms of these two quantities?

  If you pitch a baseballv*cd9 1d(-brzdjd )sp4pj lm ma m0k(6 with twice the kinetic energy you gave it in the previous pitch, the mcdj (pjsazddd(9 lvr)0 m-p*1k4mb6m agnitude of its momentum is

State Newton's second law in terms of moment;6yoy5v3bpr* ei;d nn um.

State the law of conservation of momentblxmbvbr;-s:j1o3 7 rh )kqt,um.

  The area under the curve on a Force versus timev4674v*hpgnbjj xl 3w (F vs. t) graph represents

  Which of the following is an a( pltjtgn50p2n ntq/*ccurate statement?

  A small car meshes with a large truck in a head-on collision. Which of the u2wq;tfo0e, u following state;foueuw ,0q2tments concerning the magnitude of the average collision force is correct?

  Two equal mass balls pgba( p w.wi7 rdh3 ym0o)98gl(one red and the other blue) are dropped from the same height, and rebound off the floor. The red ball re03w87wo 9hg.)myadb ri(gplp bounds 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, collidesz 1c, so6fcxx8 with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experiences thex6oc 1cx,s8fz greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linea5+:odql pr7 dpr momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It c31qy*cec) yd ( :e3gwq2 owitoollides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which s:3)c cgowq *i1qywe ed32y(ottatement is correct?

  A 100-kg football linebacker my7an5 e vh)lh9*ig2 kmt5fi.q oving at 2.0 m/s tackles head-on an 80-kg halfback runk27n5ag 9 5)ylvqfei h.m iht*ning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is con1(6x sp0qc,,fb us*ck nuj 6umserved, then which of the following statements is true abo p,csc0*u6mq,nb usx j1(u6kf ut kinetic energy?

  When is kinetic energy consqsasdns;z)f i* 7416:qeqq0y cw dwe- erved?

  In a game of pool, the white cue ball hits the #5 ball and stovrr 9u2 aste74aymq 0 -z(x3nh5 osbs,ps, while the #5 ball moves away with the same velocity as the cue ball had originats5(-ymv,sb07 hq43a un xa2orrsz e9 lly. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a hmzm(5m yayz o 7g22;fqeavy exercise ball at rest, tz yo7a2fzmm 2y5g(m ;qhe 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-on collision wu rybgc)s 6;3with a stationary bowling ball in aurcs)6wg yb;3 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 iu0nz 13 yvd*ahead-on elastically with an identical ball at rest. What is the speed of the initially stopped b* 1ianz30y uvdall after the collision?

  A very heavy object moving with speed v collides head-on with a very lighthgcco0l;8 +xt h*m1 xp object at rest. The collision is elclc*+ghx80;hto x m1 pastic, 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 wic2u:q oyv8a(g th speed v collides head-on with a very heavy object at rest, in a frictionless envi2va(y q8:cou gronment. 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 headhx0g k x4u7hi/-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the ux4g7/xi h 0khyellow ball after the collision?

  A very heavy object movi j5 cn 92h:n)zqhztkf2ng with velocity v collides head-on with a very light objec) qcf52nhzj2t zn: 9kht moving with velocity -v. 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?

  In an inelastic collision, iq;b,tib kiyu -0;6vx uf the momentum is conserved, then which of the following su; -0xit i6bk vq;yub,tatements is true about kinetic energy?

  Two objects collide and stick together. c :a99u)w9 tf1 oaald;bldkw) Kinetic energy

  A 3.0-kg object moves to the right)rv4 dtcug+q: at 4.0 m/s. It collides in a perfectly inelastic cod u4qg):rcvt+llision 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 objecfs o+ng. 0 t:,wtv380g kpzi 5yuiskh2t and sticks. Which object experiences the larger magnit:,i 380i25v nkpky tsuwh g0o+fs z.gtude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflectem;nh, diss.o 0d 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 following statements is q)qxsbp vji5s;i;6 7xfals)visqj6xq; 7 x pb;s5ie?

  Which of the following is a false statemfi* m;kt4 fop,ent?

  Tightrope walkers walk;uttygu+kd, :w8 *vh3. ecd s mijwg(3 with a long flexible rod in order to

  A plane, flying horizontally, releases a bx ;bg;1mis s:2r xxslc 2wce-0omb, which explodes before hitting the ground. Neglecting air resistance, the center of mass ; c2;xlgew-bsc x2ssm:i 0r x1of the bomb fragments, just after the explosion

  Two cars collide heawbgs )k4 -0 0f8redhpjd-on on a level friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of thisw)8hkg4esfb0p- d0r j system's center of mass?

State Newton's second )yp 6npo.m:dl*u9q1jm 1 yx a7z*sggalaw for a system of particles.

  What is the momentum of a 2000-kg truck 5: ij:bcqrkz dt.wfbs); ,r:3l jm;xftraveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What isullq 6y*nk01l the magnitude of its momentu ylu6n1*0 kllqm?

  A ball of mass 0.10 kg is dropped from a xbckd12b1l s8s 0 vc68dcbw7wheight of 12 m. Its momentum when it strike10k bvldc8cx w61bc2d sw7b s8s the ground is

  Two identical 1500-kg cars are moving perpendicular to each ++cix2xj *hn2w dy(uvother. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentumcv( x +wuj+h2di*2nxy of the system?

  A handball of mass 0.10 kg, travelibpdq-,lv 0l ;vzw.,o;sw(yfzqr -+ d wng horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the chan-q,-wsq zodwzblf,p lv(.yd ;0;rwv+ge in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s,fxrwlbqw1)(t0 1p9 t m is struck by a racket causing it to rebound in the opposim( 9t0r)1p1lx fbwqwtte 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 on a frozen 86s 6vlg(yev ;du xs)cqp-r)tpond. The machine fires a 0.40-kg b; ()gudts - lpvcy6x)vrqs8e6 aseball 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 spacve kac*nxi ;c 0ir8l;wq 6z).qe-walking outside the space capsule and is stationary when the tether line breaks. As a means of returning ti8v*; xcq; kn i wz.ecar)ql06o 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 l ,j gk8xgj+ 9jw)t,jna large object at rest. The small object bounces straight bajj,tk xlg+9w )nj8,jgck 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 friend (40r:c;mmgb d 5nwiu7.)xz/ qu;eefg7 8h -kg mass), who is standing still, with open arms. As you collide, while holding each otheh/ z xeiqcm;ge ;fbug5nw.r mu7)d7 8:r, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straigh cferal)1 9 *cyk92qpdt road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collicap lfyc99qr k1)e*2dsion?

  A 1000-kg car traveling at 25 m/s runs into the rearl6iz 9oka 6zhzj9o ;fjib2j 9+ of a stopped car that has a mass of 1500 kg and they stick to9ja6 2z9b;fl ojk6ziijz+ h9ogether. What is the speed of the cars after the collision?

  A railroad freight car, mad rfd; q ll;(me8j;nf(ss 15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It cl(l(8d;; n e;ffrqm jdollides 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 coupling?

  A railroad car, of mass 200 kg, rolls with negligible frictiy) tsz)(ss;, zo zey)mon on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down m ; s(ozs),tzyzs))ye 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 walksy33/iugm;bya 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, with3/ y;may u3big respect to the shore?

  A 4.0-N force acts fo: w a,b2lz:1jwnm uc(dr 3.0 s on an object. The force suddenly increases to 15 N and acts for one more secondj zwu (lwbm2,ncad: 1:. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is tb .y*lo e ydagz7)v5y7he object g.yz*5 el7)b7 vaoydy's change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, coli* s *tr/zq9ikuhs+n68ek l:dlides with a brick wall and comes to rest in 0.20 s. What is the average forct+ diuh:k8*i/6qz*e ks 9rln se the car exerts on the wall?

  A 2.0-kg softball is pitched touuat48llcb m7zn3)) p you at 20 m/s. You hit the ball back along the same path, and at the samuu3 )lt4npz)cb7 a8mle 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?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball right bef0:t8l bv fs;qzore 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 f0s:blq8;fv t zorce exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muzzle ykat 7e4gwdkw6p2 p-:yb t; .na zy(83cub7whvelocity ou-c 3a 28h:etgapkbbw z7py4 tyn(k7wd;.w6yf 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door o h gu7bgmrqc(:wgq(w97lv x*uy 9lz60 f 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 n(qwg6* cq :97zux 9llwbgrhm0 g(yu7veeded, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. Itd r4olsp2d8, zfk,ara o; qk29 falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does i d, k,arodzl aos28q pf42kr;9t exert on the ground?

  A toy rocket, of mass 0.12 kg, achievesftrbal ufm0;k78d2z4e9jm yxh o(w s 3ge,c;( a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does thesmzhuffg;j (o dbmy(cex0lr9e 4ak72;8t w ,3 rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest k1fk9q ig h,m:in outer space. They push each other apart. What is their separation after the lighter astro1 qk9m:,igk fhnaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It c;bsuij12qvnf/ plm (18 r6jjmollides in a perfectly elastic collisbj2 /qvr;mpu lij811jm (f6 nsion 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 sxphb8j-( m0 lc/ 9eqfo-*nbpin 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 o-0-q (m nlbbc */hfsxojp ep98bject after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-- dh4+gunn x5bkg block at rest. The bullet emerges (the bullet ddg4b nnu+-x5h oes 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, is0. ft em)yjjl. 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 have after the collision? (Assume thyf. .e )jtml0je neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary h eweuv:.2n0bmz 8b x9c (yf5lball of mass 10hbclw b:m efn82(0z e.x59uyv 0 g. The 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 ofwfrky1 9:fmi2 y1vj2p 3.70 m/s collides head-on with a 20 pf9fy:i2w 2vm1 jryk10 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 ofvk5q i8u2j6 qdcfuf4, 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collisiov5,u 8q kq246d fuicfjn 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 4.0 m/s collides head-on in a perg )3kni:;czh x3;qn opfect qo)igp h3z;3xn:;cn kly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagona,6u52 csbme v, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy iscb svm65au,e2 lost in this collision?

A 15-g bullet traveling 213 m/s in a v ,givbmil31 jw,guu)8xbk0- vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result,x8k, 1wug 0gljbm,b3 iv-v)ui 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 travelf9,ou.9f +rchdd7 lzi 0lrbgt(cy2j(h-a x h(ing at 90.0 km/h 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 speed of the cars aabru oc0lxidzh-fc.9 +( ,72yh 9 jrhdtgl(f(fter collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car zz- qs z7smm3o/j:/slui 98zs traveling 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 col/ou zjsl7ss: -3ms8qzz z9 /milision?

  Two objects move on a level frictionless surface. Objec0h,u mx4 qx.7ve z yh3dx+ek89rxr.kkt A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastr7k8 y0.vx 39x rdhxh+ kz4.euk,qmxeic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North wigt1n i+d-: z-t8dw51zotqz k qth 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 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 frz+iz tgt-:51 81 dwokq dq-nztiction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x ,ot)l4/c y ys9qtfcr+tj * az4= + 21.0 m. Where/ tyscjqtr,a+44o9)lcfy z* t is the center of mass on the x-axis?

  The center of mass of a two-particle system is anpd2gs ,w*l ;btdz x+4t the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is t p*4+db,zdw; t2n lxsghe 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, 0q9d6; rxmshv :h5f-.-pgrju d ), and 4.0 kg at (2.0, 1.0). Determine the coo6d d9hr-rvs.-mp5gqfuhxj :; rdinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located 4yaj5jv+x92ij9awv vat (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of 52a j 9ixyjj+49wv vavthe center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positionsr: 1 iqeskx1-ed 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, (0i-1 :1s qsxker, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole , we) 2r6zybpnleg including the foot when the leg is stretched straight out. Assume thene 6,2pzy)wb r person is 1.60 m tall.