What is the SI unit of momen/ l9k/2+r9i4upanuv7 gd nnaltum?

  When a cannon fires a cannonball, the cannon will recoil backward because tx9w3*nuz7pu)1ot2 xpbcf0a( :stak e he

  A freight car moves alonlhd63 tl //z :)agij(o8rqls jg a frictionless level railroad track at constant speed. The caaz 3) /rl/6qldogh l(8 sj:tjir 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. What hap7ib1 m:jeeu zxxxq(hou 0 j39)pens to the vel7j e :hjzi0eu(xu 9qob31x xm)ocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with;b iyyy5.9s5kny v nh7 equal speed against a wall. The ball bounces backyk57hs ;nyny v .5biy9 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 movin 7u3u 2)6o bi squ2.mlg:ihzvtg with a momentum p. How would you represent its kinetic energy.bg2s u)izl2u 7 vm6t3 :uhioq in terms of these two quantities?

  If you pitch a baseball with twice the k kok :bts,* dhp6(ade 9nht -z10efc6ainetic energy you gave it in the previous pitch, the magni:oh 6an0p*tkz9 ,-1fes( ahk6ceddbttude of its momentum is

State Newton's second law in terms of mg*+ir9 hmcte(f+m) gfomentum.

State the law of conserxqdw((u9 b4k kvation of momentum.

  The area under the curve on a Force veq f r-u1l jb8o:lv:0xfi +:kwjrsus time (F vs. t) graph represents

  Which of the following is an accurate statemg67y.v+dx*av son:kvu a* dy3ent?

  A small car meshes with a large ,n fei+q5k xkf 6w4j.g7mpo :etruck in a head-on collision. Which of the following statements concerq5 foemk:f .64j+xgk i7n ,wpening the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from th;7f(cu ;z/0 tqayf v)f )gxfdse 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 collisiosgcaf;( v; f/fzu )x0qy7t)dfn with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s4oc2 n8-ppw/ mm j6y xoqwa/8vya )b:l, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly /)mmapc- yjvbo xw/o:l6 8ap 2qn48wyto the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear ;ct ( nb-viy.56rawj*.etgkzmomentum

  A 3.0-kg object moves to the right at 4.0 m/s. It y45bus 1t; rui-1je5thn6 nps/ f3dxdcollides head-on with a 6.0-kg object pdru buy6/15tf3 d t4- j5xi 1nsnh;esmoving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebak nga)r n8c5h), l4umdcker moving at 2.0 m/s tackles head-on an 80-kg halfback runl unchr) k5),g4dm a8nning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is co.tyt-3 w ygko/tf :(eec9gf 1fnserved, then which of the following statements is true about kt(e1 e/tkyc93wgg.f yf - fo:tinetic energy?

  When is kinetic energy con0sx h1io k5 *-v2clbmac h*oy8served?

  In a game of pool, the white cue ball hits the #5 ball and stops, 4(wq 8px4esa udsi0 (t es( ;9ng )0pwlffje1dwhile the #5 ball moves away with the same velocity as the cue ball had originally. The type of collision400(eg p89ixp1t ( e s 4(d)usfjewqsn;w dlfa is

  When a light beach ball e1 (qx o/8:4o b9kpsqp:fk mmdrolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be,de8mb xf m9(o:k:s4pq1opkq / approximately,

  A golf ball traveling 3.0 m/s to the right collides in a h 0kbw,s 9vnnj5 dl-xg6ead-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 collisi x 5nl0n,9wb6v-dksjgon is

  A rubber ball with a cahm; 8( 0tdkf:gpm9zspeed of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the collis9 8z: mtfkc m;g(dah0pion?

  A very heavy object moving with speed v collides head-on with a very lightksz2rhb5a x) 5 object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of th2 5zax5)rhkbs e light object after the collision?

  A very light object moving with speed v collides head-on with a very heavy ocy *m*yai8k m/bdoa3 2 ,vzg,qbject at rest, in a frictionldmy/ 8cmyvk,*biaq 3,o2 zg*a ess 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 witk7fl* zi ius+r9m/(e fu:ddf4 h a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball aftefi/rius+ * : mu7k4(zdlfdef9r the collision?

  A very heavy object moh bm;ds6;f- g+ 2le+akxlkiq6ving with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The ; 2d lbf6xgie;+l+-q kkhas m6heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if b4u27a: kqqo f4 dox8xthe momentum is conserved, then which of the followif4k:q4ux 8dx b 27ooaqng statements is true about kinetic energy?

  Two objects collide and stick together. Kineticy2c 8x 0f:ax.r8q lbuj0wuq: r energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly inel* +zjxa6xz: ksh*j44t;kps edasz*x:* xptkzj kj4e;s +ah sd46tic collision 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 collides08r - *qla lolmjk.0uj with a large object and sticks. Which object experiences the larger magniomaq j l.rj 8-k0*0lultude of momentum change?

  In a game of pool, the white cue a/8mr4.pa) 2v ab 4fjjqbhs )ks 7dkc:ball hits the #9 ball and is 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 andmis)grrx *kr5v 3l-l / m. Which of the following statements is false?sx*ll3/ )vk -rrg5mri

  Which of the following is a/pq ol.3h0we a false statement?

  Tightrope walkers walk with a long flexible rod in ordx8om2 n ug;(iwkxbu64 er to

  A plane, flying hori 7vh:3 gfh)rbnzontally, releases a bomb, which explodes before hitting the ground. Neglecting air re:3 g7r hvhn)fbsistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The col2/s6bh yyt drgkc0sev ,3;g)ylision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocityrg /ek )v;c,g2hs6dy0y3 sybt of this system's center of mass?

State Newton's second law fo d-en akiq-/ pkv80 8vjaa3jb9r a system of particles.

  What is the momentum of a 2000-kg tr y lw y1x3mdzhwe3g:81o:r;)sxl4q iz uck traveling at 35 m/s?

  A 1200-kg ferryboat is mmfy +a22od(5+k u:6mxxoupsg oving south at 20 m/s. What is the magnitude of its moment ugmko 5 m(++dpu:f2oyaxxs26um?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentumq;3fisj -4oaoy fwj1:)o*mtm when it strikes thoo4-jsy:3ofq1)atm*mf ;wi je ground is

  Two identical 1500-kg cars) (8paaanbpp h a:6pe, are moving perpendicular 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 the syst anb:h app,) 68ae(ppaem?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, rkv3rp45 d 8n/fojx8t strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the b/4knrr p xto 5j38fd8vall?

  A 0.060-kg tennis ball, inith go3p1 d(lu/wially moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of gl ud31/w(pho18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excl4pluenr7 62 zuuding 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 2p4e nurz67lu recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut iszl b1t b4sw.9y space-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 bs b914yl.wt zwhat speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object at res /o gkju, uwi kwn-/vf6k,6so0t. The ujgo6/0,iknsf /wo6 k-w vu, ksmall object bounces straight back 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 dg2(h4fqh7;)rkx jncto greet your friend (40-kg mass), who is standing still, with op;gxdh7 jf (n42rkchq) en arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg mbokhm3 8id. o+oves to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of k8 hmo.i+b3o dmass 200 kg. 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* :-g*p.nen r(xcdnm gnbo8 3yc3j;gi has a mass of 150oe ym g3p. x(* ccgng-:*rjndinb3;8n0 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowe96g;)tp w a* s0vljubpd to coast along a level track at a speed of 2.0 m/s. It collides and coupbsp lw; j*tuvp0 )a69gles 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, rolsrhmq (w 7sy.1ls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distances1s(qymh 7wr. 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- wk9b6i-6 a ;g eprfxhubg:x7 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 ;pa xxge6bgi wh7 - -9ubfkr6:the shore?

  A 4.0-N force acts for 3.0 s on an object. The forcefb4wxm fk:/2xv m.thwg0fr/o2p 3na 2 suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the o n4mhmw2og2r /xtw3:.ba0/ff2 fx kp vbject?

  A constant 9.0-N net mbj.o1uh scffev(45-force acts for 2.0 s on a 6.0-kg object. What is the object's change of vel-cm s5 ju hv1.f4fe(boocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a b,r4pehp y58b 2qeb)ryrick wall and comes to rest in 0.20 s. What is the average force the car)ee 2 bq y4r,8rphpy5b exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back azblar.4qh a ub4g8wp,h*24 yylong the same path, and at the same spe ybal4g, ya44hr.2pb uzhw8q* ed. 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 bue ad;-6lzi*y efore 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 magnu; ae- zi6yd*litude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.2( yg8 hk,j9:qr(mg gyofyiz- 0-gram bullets, with a muzzle velocity mk zr(gy yggj2(:,y-9qif o8hof 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 rptj(0z opo93 door of a burning building in order to knock the door down. This requires a force of 1000 N. If th(0o9tr z3opj pe 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 horizontal3 x,tt/ v3v*xezk+gfc drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splag+vet/tv f3 xk*zc,x3 sh up, what average force does it exert on the ground?

  A toy rocket, of mass 0rf 3 --lag) *wa1lqxerc 1e2cl.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrustafr1 e lwcqlaxg2-l r3-c* 1e) force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at a1ydgb;rgk0ndx8 au 4ao ijv*8: ,l8arest in outer space. They push each other apart. What is dgadv;8*:gr u0 8x ,bikyal4aoanj18 their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.jfe)vz ewsifl,8;4 )l0 m/s. It collides in a perfectly elastic collision with a 6.0- wvelsffe,l;ji8) )4z 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 (5cjtwpc+qb .bcm 4 )ithe +x direction makes a head-on elastic collc.(qcbw4i tjc5b) mp+ision 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 i 3v29z ztsrvft:0tr8v nto a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in tv28z s3r vttfv0t:9zr he 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 heaf/xl;1 j:xav fd-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? ;x /lxaf1vf:j (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collitgv*ht-3g*k rdes head-on with a stationary ball of mass 100 g. The collision ig-h*3rtv ktg *s 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 collides heo.4 m9ytl(ni7lajd2vs4ya4 qad-on with a 200 g ball sitting at rest. The c2(y.v 4l q dosj49ma4ly7n tiaollision 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-otgo+vih8u( b 1n with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the cobh 81gtu(+iov llision?

  A 2.0-kg mass moving to the east at eyrj74buy 6x- a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationreyy ju76x 4-bary 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 wagon, gz9iate: czz7 n;a,5 lwho's mass is 2m. The bumpers lock togetha9 zz5li;tc:,7 g azener 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 vertical direction buri 4s6lcf :v rwuub+ +as:nd* sy/0diyi2es itself in a 2.4-kg block of wood a rest directly above it. As a result, the bulle0ls*c/dr:yba6fi+ 4v s: u+syudni2wt/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 3000-kgg8t:p*3 h *qxrxso 3ld car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.)sx: d83rq *o3xpt *glh What is the speed of the cars after collision?

  A 1500-kg car travel*3sayff9jx9 mxwc, 0o -qj,v; rx vr/king at 90.0 km/h east collides with a 3000-kg car traveling 9jsv xqwff,x,rc -v3mo/ krx0; j*9yaat 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 collision?

  Two objects move on a level qkd8 f0r-wpm0ev9id(/n v4c 4yqccy 1 frictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with mom4fkr/ icq pdc9n84vydyv1w c 0q (-m0eentum 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 tn.d6kss3pio t-gn,7 k he 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 3t .6s spg-ion,d 7kknthird fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = 8p0 dj, g635rjmpzry e+ 21.0 m. Where is the center of massd6 erjg z 0yj3p,8m5rp on the x-axis?

  The center of mass of a two-particle system is at the origin. Omba1ro +i abb) 4ky6a7ne particle is located at (3.0 m, 0) k 7a1br b6oa)a4+mi yband has a mass of 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, rjzbsr 7p3.b( xm ,sxd; p9s.o0), 2.0 kg at (2.0, 0), and 4.bpps,r7;jx3m. .zobxs(9rd s0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and)fp9he1pti-ya(gk/ w 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of tk(eiapty p)9h f/-w1ghe system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg ma )b1t.iz;fuyt ss is positioned at (12, 0). What are the coordinates of a 4.0-kg mass)ftzit by.u 1; 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 l1wf dgwlj1.o)(ejy2 tms zw*,eg including the foot when the leg is strtw.(el 1,djw )2jywz o1sgfm*etched straight out. Assume the person is 1.60 m tall.