What is the SI unit of mome4kr,,nvp 1tzugf-p0qntum?

  When a cannon fires a .u fydr pv-xap*v5gou 5/n4x 1cannonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railr jxsxpyq rw;s ;i1a5td9pv +/2oad track at constant speed. v/p; sxqd+51rpt2sa 9ywx ;ji The 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 feklhf.,rqm;r* nx yf*jv+59rrictionless ice. What happens to the vemh*ek9v+lxfnjyq.rfr; r, *5 locity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equipu, jv*233f ;p*dn(gy tru lyal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objv*; y(3,uyfdti3prg 2uln *jp ects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you reisnc *xrrnhsr5789k5present its kinetic energy in terms of thes*85n5 s9xnk cr irrh7se two quantities?

  If you pitch a baseball with twice the kinetic energy you g/kti ofmnn *t+- s bv0bch7xf14b/*nwave it in the previous pitch, the magnitude of its momen40o+fnk f*c vbb7/t- iwthnnxm 1*sb/tum is

State Newton's second law in terms of momh )(cxwyt87yob jgi3 (entum.

State the law of conservation 8 c5bz 0kjnypre 05-ly2afhl) of momentum.

  The area under the curve on a Force1 mc.ga5t blx- versus time (F vs. t) graph represents

  Which of the following is an accurate statemeno1i ykqcz ;,lg/;*ywnt?

  A small car meshes with a large truck in a head-on collision. Wh pbwct.d3wqmb62,o*zich of the following statements concerning the *w6otd,mq c.wz b 2p3bmagnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blueu+3yt gpo9 +z:eo xu;b) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision w9z o+xt +g3;ybup: euoith the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a statiom2bhj+ zkl ; liv681bynary bowling ball. The Ping-Pong ball bounces back to the west, a6 j bz ih;mbl2+v81lkynd 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 other1ebne e7urc7+ . Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-oe8t i1xf e53q :s .c;nwueao0w1rmm:on with a 6.0-kg object movf cn1;:1 0wo aqe swmmox 8eu.3i:ret5ing to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving atwxh5yop: 2 yd1 2.0 m/s tackles head-on an 80-kg halfback running:w 1y5yx2o dph
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision,; /wz2i9:c+ fxh rnugw if the momentum is conserved, then which of the following swc9;/w+ xgiu 2zrf:hntatements is true about kinetic energy?

  When is kinetic energy conse,ka k v*rexdx- cyy rc*5jd046rved?

  In a game of pool, the white cue ball hits the #5 ball and stops, whi .(tcur0 (pd tt/r6c:cjb2nct2cfj6dle the #5 ball moves away with the same velocitcdjd(jc tbnc ct06 r 2c:pf(ur26/.tty 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 withmg1 9a 1ns/l-/rc d z(f(evxnk a heavy exercenk/afmxgs9l-/nz 1 c(v 1 rd(ise ball at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s tp hrx**v(di gxme1j73i6iv 0go the right collides in a head-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 immediatelygxier1*7p (x i3 gvd j6himv0* after the collision is

  A rubber ball with a speed of 5.0 m/s collides he-loa0r tos5 l5ad-on elastically with an identical ball at resto ol5l5-sa0r t. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with spes:q agw61tj8 ked 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 d:s1j8 6gaqwtkown. What is the speed of the light object after the collision?

  A very light object moving+ k5r)yh8skp n with speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost p)8k+nrk y5 hsperfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/g (a(1baut ;p/rk0eums collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow akptua/ m(u e;b1g r(0ball after the collision?

  A very heavy object moving with velocity v collio: r m-0tfu.urdes head-on with a very light object moving with velocity -v. The collision is elastic, and there is no m:0t.ruo f-rufriction. 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+( x8hp5mhild sa(s q3 the following statements is tr8 (lia(+hd5 px3mhqssue about kinetic energy?

  Two objects collide and stick togethe0+*o ly 0+ 7ysgryr:ev gpoo.rr. Kinetic energy

  A 3.0-kg object moves to the riged5b3r1g 6rlf,n ybm7 ht at 4.0 m/s. It collides in a perfectly inelastic collision with afg 3d y,be 576bn1rmlr
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. Whichk ;,al:yhq ,nz4ecto/ object experiences the larger magnitude of momentum ch,ozk/, ha :qe;tlnyc4ange?

  In a game of pool, the white cue ball hits the #9 ball and is defl:lvub, 9mndix x w0v)lp6q om9kad857ected 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 followin 6p64qnb*k)8vugdb keg statements is false?6)bbgp8k ue kq6v *nd4

  Which of the following is a fals rjq )/4fi5g0k*eypbg e statement?

  Tightrope walkers walk with a long flexible rod in org(9oa wc ox mm/+q;:3gubv6mdder to

  A plane, flying horizontally, releases a bomb, which explodes befs 7/:wde.odw5 fx teq1ore hitting the ground. Neglecting air resistan17edtw: f5oqe/dswx . ce, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level fr ctupyr ws2-5 b5t9)rziction-free road. The collision was completely inelastic and both cars qui95 ypsctr2r )zuwbt 5-ckly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second q agd.a b/ai3is gaj4b)g q9pj-8,o; claw for a system of particles.

  What is the momentum of a 2000-kg truckah: ufd02-l jw traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnip;9+ b*uqs/*u0 8qjggardgeet1 a zqm5gag+ (tude of its momentu a5ds0*e; e+g/qzumg9 rp(8qgat*+j 1gb qgu am?

  A ball of mass 0.10 kg is dropped from)6 pe7*8fb, r rx/mok23 r evecm)oosr a height of 12 m. Its momentum when it strikes the grorom2bpf)vk ees6o rc / 7 8)3rxom*,reund is

  Two identical 1500-kg cars are moving pe o zs(pb2xs4e5rpendicular to each other. 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 momentum of the52s sobpz 4x(e system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strw5mgr)pmpvh i*) avm*l983he ikes a wall and rebounds at 24 m/s. What is the change in the momentum of the bihhe5vppa mmwmr)g 9*) 8 *lv3all?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/.nzmvp2yo 0 +is, is struck by a racket causing it to rebounmz2 yvn0+opi .d 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 on a j,w/rt w3)oi18sm7wk e. upgr z7h h5qfrozen 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 pitching machine? (Assume ne)m3tqr. w7/8h5iow7,k pge1uw hjzsr gligible friction.)

  A 70-kg astronaut is sp9 t qmo*)6xdnlace-walking outside 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 of 14 m/s away from the capsule. At what speed does the astronaut move toward the capsule? t)9dn*l6mqox

  A small object with mibcntxb 8l53p.3v: qh omentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the8.l33bitnb x: 5qhp cv magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass), w*eght qe9pj2 zp oe774ho is standing still, with open arms. As you collide, while holding each othe ej27eppzhg7o t*4 9qer, with what speed do you both move off together?

  A car of mass 1000 kg moe88o4 fz j0sh5mn: wrives to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentr8mn48s: 0z5 fjwih oeum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear7 eoji- 7zdpj+u oywi,7tcin qd w,577 of a stopped car that has a mass of 1500 kg and they stick together. Whato -d5w+o,i 77pdiy7qwu,ine zc tj7j7 is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a lev0xgx7k -fzp-+1l qwnvel track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initia fx7lqpzw k0- 1vg+n-xlly at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mah,-evaqe ml b598how4 ss 200 kg, rolls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straig89 e5hhl-vo4ae qw bm,ht 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 on a 100-kg log at the raetr-+pji.p8;ak-mis f ,d7w xte of 0.80 m/s (with respect to the s.w p rmpf8i-x -7atji+;e,kdlog). With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 a-4wmlvf.r mfh (s/v, s on an object. The force suddenly increases to 15 N and acts for one more secon-v rf./w, m4 ha(vlfsmd. What impulse was imparted by these forces to the object?

  A constant 9.0-N net fo/;- wqeb ,nojg(tdog0rce acts for 2.0 s on a 6.0-kg object. What is the object's change of velot dwqoj(o g/ g,neb0;-city?

  A 2000-kg car, traveling to the righfv7hr.(e(w fft at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exert v7f(f.w(hrf es on the wall?

  A 2.0-kg softball is pitched to you at 20 de02scv 2zgiu5 -lpmz27 zq3zm/s. You hit the ball back along 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 averaq5 s d2vlegz-pmizczu72 20 z3ge force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. e*x*k pdgy5n,The speeds of the ball right before and right after hitting the table top are 5.0 m/s,*dn 5x gkype* 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 force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, yom5b;h53ow s; n8 gbzfires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?w8bm b5;y5 os;ngo3hz

  A fire hose is turned on the door of a burning buw.dmwsq4e vehu7 4u0+ilding in order to knock the door down. This requires a force of 10 h q4esv7u+04udwewm.00 N. If the hose delivers 40 kg per second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizo;j/ial .fdet-ntal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does itide. tla-/ ;jf exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, whebhm +al3.dcp1n nh+j /n fired straight up. What average thrust force does the rb /na jh+c3n +1pdmh.locket engine exert?

  Two astronauts, of masses 60wr0dw m +t-)qvy 4oih7 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astromr0yqw7-th od+w v) 4inaut has moved 12 m?

  A 3.0-kg object moves to the righr.v ukm k)3:-v dt,lrat with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after th .lu)t va rvr-kd3:k,me collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x j6x o12v+s l ww l-;e/yjnr(qkdirection makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of thes w1j-nw6( ryo;xlq2+/k lvej 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is ( s56zjvp*wlz )vt)n efired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the blockps)v )jtn* ez 5(lz6wv right after the collision?

  A proton, of mass m, at rest, is struck head-on by an v)rqgf8ofex9mi fbi rz-/43a;9 7nn 2g iobl.alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is comfm2qv.b4gea nl9oi8ixr3i gf o r9z ;-b/n)f 7pletely 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-ox 2c lklj:e38mn with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball lkex2lj 3:cm8 immediately after the collision?

A ball of mass 400 g movigf97gh-xz g(cng toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The g7-z h9cgx (fgcollision 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 -p;(ovfd*3ar/ pysggv-e 3lb9 pue1p with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speede b93pgp asor -pu-v3ply* (1dvg/ e;f 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 i7 7u.pf8ju d)rs ario8n a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is loi)op as .8uu7frj 87rdst during this collision?

  A car of mass m, traveling with a veloxw a3 781zlp:2tjymixcity v, strikes a parked station wagon, who's mass is iz1j3yx 8amxt2l:wp72m. The bumpers lock together 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 a / h+r+gh4.vg b8+o gynph(mc hvertical direction buries itself in a 2.4-kg block of wood a rest directly above it.h+ mghcopvg+b .(r48ngy+h/h 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 traveling1 e(n dbpii /;:pq /ev0l)z :e,bacgio 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 collbd: g)pepaeei ii0cb,/; ov/(:znq 1lision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east co* s4lmym01p *1z7vyprjh5. rr1hwqtuq9*gbsllides with a 3000-kg car traveling at 60.0 km/mhtr19 wzjpqu5hp1 l 40*g . 1yrvqbm*rs*sy7h 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 east with a madzt:f 1 kecu/n,;3ua omentum of 24 kgm/s. Objn ae ft/kd:,cu;1 auz3ect B moves north with momentum 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 tzh-)3 otpu;urfo-e7 hhe 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 speed of 10 m/s; and a third fragment with a mass of 1.0 kg. What is the velocity of the third fragmen- t- 3uzo)h7ohpf;u ret? (Neglect air friction.)

  A 4.00-kg mass sits ayahrw0751 bjet the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is 1j7h awb 0eyr5the center of mass on the x-axis?

  The center of mass of a two-particle as. 9kfb1w-bw2 +.c hons8n bid+gwe/ system is at the origin. One particle is located at (3.0 m, 0) and has a mass ogsbh.2i8d c+9w k/wf 1 b-+e.sonbnawf 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 68/:z7 ki y+few9:ppyjjxx8 y. igpptkg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of gw:x pty zj yk8y6+p:.expjp897i/ifthe center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, *o7clz2:m o (tokpfw)0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the locatto)27wp (fmlc z*ok o:ion 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 (12,*miw/g 1xacaw , vt,e*hb2w.q betwwcim2ah,xavq w/*g*1 , . 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, (0, 0)?

  Use Table 7-1 to calcusi k3h ,+ojvsckxn2d7- /l1 mnlate the position of the CM of a whole leg including the foot when the leg is stressn3komxic d17 vl/hk ,-+n j2tched straight out. Assume the person is 1.60 m tall.