What is the SI unit ofux l4v;6 )hc5s9 o lo5ou1pt.k fqahs3 momentum?

  When a cannon fires a cannonbanl (+lm5tyif:ll, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constanr 7flixv5wg: 9t b3k.kt speed. The car is open on top. A large load of coal is suddenly dumped 7 x5kk .gviwf3blr:9t into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sleddinflqkyr.8:wwu +px) m5g on frictionless ice. What happens to the velocity of the slfy x5lwuk:q. )+8rmpwed?

  A rubber ball and a lump ofct8 85n( zg pjw(k(bcd putty have equal mass. They are thrown with equal speed against a wall. The ball b g wt5cpd(j8n8 ((bzckounces 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 whhu7kef-3u*+: pi3k ble5* ys-ldr jk ould you represent its kinetic energy in terms of tsbiyk-ekuue 3+jf7hr -l*3 :d*kpl h5hese two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the prevtfzgr.6 bz k 7rt4 ;5nwvqpj;4) h3bklious pitch, the magnitude of its momenw4p)fkjn hr zgkv7 l4b65.rt3;bq zt;tum is

State Newton's second law af*:o ksj*oe6in terms of momentum.

State the law of conservation of m*,pdqb 9r0tdy d4ch-i omentum.

  The area under the curve on a Force versus time (F vs. tn:0s /clv we5zegyt/;2c26z xbrtn7m) graph represents

  Which of the following idc 36h; 6klztrcg;b -ws an accurate statement?

  A small car meshes w*-g ftlh(qgs1 avg- /sith a large truck in a head-on collision. Which of the following statements concerning the magnitu1gah(tsf*s l- q/v g-gde of the average collision force is correct?

  Two equal mass balls (one red and the other blue) ark:s7)p jkou/6qs bkj- o35bnn e dropped from the same height, and rebound off the floor. The red ball rebok:57 o)-us nb6 /onpjsbjkq3kunds 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, collides with a staotn 8san70v2mtionary bowling ball. The Ping-Pong ball bounce8ao0vnns m t72s back to the west, and 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 ob*so3q7,vzi i ther. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.02wh p+u3wye1)zf5+bqlsovh 0-kg object moving toh + yblzvu3fo se1 +20w)w5hqp the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kgu;id223t0wewpxf * kkls 7xk9 halfback ru2 fd73ux* tpk 0l;kswewkx92inning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisio i;lm;la)av -cf9 jab)t/v/qa n, if the momentum is conserved, then which of the following stat/ltj abva/m cvaa )q)-;i;l9f ements is true about kinetic energy?

  When is kinetic energy conser zs9m8u8ag jo 60j d*ye)oug5lved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while 2cvtc9f r *bcc k(f/.uthe #5 ball moves away with the same velocity as the cue ball had orff2 ccu(cc 9kr*.vb/ tiginally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides wit7;5a ryp:uhrfh a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximau: fr7 ;pryah5tely,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision with nu+h(m3r 5ly/w+ rvua k5he+jp md u91a stationary bowling ball m(3upl rwua+uh/ 9++m e5 khrny dv51jin a 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 head-on elu(,ym6 rq mip0astically with an identical ball at rest. What is the speed of the iimy6q(,0r upm nitially stopped ball after the collision?

  A very heavy object moving with spsgkxqiz9q g+iv- /6 m)eed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy objk-ixz6/)sqmiq g vg +9ect barely slows down. What is the speed of the light object after the collision?

  A very light object movi pyb94)wq 47p 7v6ue7o q+wqimdhm.hwng with speed v collides head-on with a very heavy object at rest, in a frict4hm9 o7 y)p wq7uhbivqpmw7eq+d4w. 6ionless 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(z8sp,jln/no-m 2x qym ho73e with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball afjx/ nn -zyosel3ph(2 m87om ,qter the collision?

  A very heavy object moving with velocity v collides head-on with a very lighfs p. gg u6g.cvl6t*3ht object moving with velocity -v. The collision is elastic, and there is no friction. The heac*vpgl.ugs 36g.f 6htvy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum ishw7m4,2 zp bpq conserved, then which of the following 4m7pzwh q,2p bstatements is true about kinetic energy?

  Two objects collide and stick together. Kinetic energy b paf/l-3a*lm5f g6dc

  A 3.0-kg object moves to the right at 4.0 m/s. I1p pqiifc l1q k*t1+2ft collides in a perfectly inelastic collisio q1c*p2+i tifplfk11qn 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 object and sti+k.czyfa8 izr7y9d 0.rlu pk, e61jyzcks. Which object experiences thecu .zr+z8ypjyf ,kl .r 79zaedi10y6k larger magnitude of momentum change?

  In a game of pool, the white e,k)ba via5:d8v,wn qcue 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 an8;2b xl6o6qxa ilzf j9d m. Which of the following statements is false oq;xx2bifzl 6j 8l6a9?

  Which of the following is a false statemj)g8b.g ys2i z1vfr 1gent?

  Tightrope walkers walk wffi.a*41f v)wjr+2 9ahxaf/vxbot6lith a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes befoip 4ho)-uk 2qire hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just afteru-ipq ohi)4k2 the explosion

  Two cars collide head-on on a level frictiq .e fv:u e1fgqt)9)rqjv- 5xv5)dkymon-free road. The collision was completely inelastic and both cars quickly came to rest during the collq1 q)fv e59g- d:m v5jkqe)rut)vyf.xision. What is true about the velocity of this system's center of mass?

State Newton's second law for a systesyp qx8dx. lcn02sh :9m of particles.

  What is the momentum of a 2000-kg truck traveli1z .zi:ise4 eh:89me 6gcfztyng at 35 m/s?

  A 1200-kg ferryboat is moving south ag udy5r(02btst 20 m/s. What is the magnitude of its momentum?sr502 gytd (ub

  A ball of mass 0.10 kg i/zlejol*9 u gjxa.z*zs(5f, ps dropped from a height of 12 m. Its momentum when it strikes the ground .59(soj/gapj l**xlzzz,eu f is

  Two identical 1500-kg cars are moving perpendicular to each othb6q c ,yax 7t7kvpevxo :298vwer. 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 momentu7xtabvq6 c8v:2yvp7x o ew,9k m of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strik 2g et0knu: vy).25(hkw2 qgjg -pstires a wall and rebounds at 24 m/s. What is the change in the momentum of the ballvte-jk2rn ):g.s0w(ip qky gt25 hu2g?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by atl6t za+d.xb ) racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of ta x) ltb.+dzt6he ball?

  A 50-kg pitching machine (excluding the baseball) is plac-5py9 -nb5fld :+dyusc d,erced on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What isr5bc5-ddes:cu-dpy 9fly, +n the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space cgsas--7ywg. i1 yv5qh apsule 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 capsul-sa.-q yigw 1 5hgy7sve. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approoo3lx ,q7zs dec2o,h6aches head-on a large object at rest. The small object bounces straight bq37se 6 o,2doo,zlxhc ack 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 gredw dco m2)h* +gr;2lauet your friend (40-kg mass), who is sth+*dr)ogu wdl 22m ca;anding still, with open arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a l ki 4r7u.hf3abevel, straight road at a speed of 6.0 m/s. It collides 3.auifhkr 4b 7directly with a stopped motorcycle of mass 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+0+v;gyb ;4yys wuffd stopped car that has a mass of 1500 kg and they stick together. What is the speeddyw0sy bv4y;;+g f+ fu of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a le2jx:x pcnki;3vel track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest aik:;jcn 3x2p xnd with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction oucz. ao9f+3f2 6dvlda,tqu7 k3ql 6)q q:p lann a horizontal track with a speed of 10 m/s. A 70-kg stun2q.afo fk la, q:6quund+9 l3)aqcdp67z3tvlt 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 on lmld h j9) 5s7kfqc4x0a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does 7kc dx)hml 95ls0q4 fjthe log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on sej umxd))r)s ( u)5xhan object. The force suddenly increases to 15 N and acts for one more second. What impux(xs 5me )rdhs))j) uulse 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 ob3q we7 kqqn)tnm0v( r)ject. What is the object's chanq er t07k))v3qmn(nw qge of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides wse0ma/dq;a* pith a brick wall and comes to rest in 0.20 s. What is the qs*pd0m; e/aaaverage force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along thvwo v24l54vudc5 .ankoyw. 8de same path, and at the same speed. If the bat was in contact with lv.du 2ww5d48a4 v.vyc okon5the 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. Tvty3+ sc*rfy ,a41h otir8 js2he speeds of the ball right before and right after hitting the table top are 5.0yav thco, 1r28yi+s4 tr3 sjf* 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 force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muz0 *w y ene/t4bahqd55hzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machin nth4eabd50eyw/q5 h* e gun mount?

  A fire hose is turned on the door of a burkjrg(w3ty u( jv 1/l n1z/zzd4ning 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 yv(/zl 1zgztjn1 / d3w(rku 4jstream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at th ym/+acn8doo0,t m16d9nzx qqe rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't 0 t/,n daoyczx q9 q6do+8nm1msplash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg,: tj tqgum.c+* achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket eng.u cm tt*+j:qgine exert?

  Two astronauts, of masses 60 kg and 80 kg,s3s.6o 5k/ .ajnsdau2c g eu1j are initially at rest in outer space. They push each other apart. What is their separation after the uce u 6sk5ajaso1 2.nsd.3/gjlighter astronaut has moved 12 m?

  A 3.0-kg object moves to tasjl f ix)x*;ps/: l:yhe right 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/sx:yss jx*f/): all;ip. What is the total kinetic energy after the collision?

  A 0.10-kg object witrw fw34ku uj+, wpuy(8h a velocity 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 up(w yu3+u k,w4jw8frfinal velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.0m *u t ;gc xmmol psnug06;i0x-hr9*v,0-kg block at rest. The bullet emerges (the bullet does not get embedded in the b;0c osn6gx; * uv*m tlxhum90rgp,-im lock) with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, u 8x3kc,4q4id7sgi 6o2hkcknat rest, is 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 after67k,2 ig4du 3 shc4kqnxk o8ci the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-onqzz6fg28g8p6q qw wy;ya dvop.,k5 0a with a stationary ball of mass 100 g. The collision is elastic. What is the speed of eacpz vzwwdf8 52qgkq6oa. y,a 086ygq;ph ball immediately after the collision?

A ball of mass 400 g moving tox;wd qy52dm.mward the east with a speed of 3.70 m/s collides head-on with a 200 g ball; dm 5.2qdxmyw 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 5.0 m/s. It collides heatugb: yf0z, 5cd-on with a 3.0 kg mass at rest. If z :c50t by,ugfthe collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the ea5n3-h5g.d(lv;v fx9f ifje9;hykk kg st at a speed of 4.0 m/s collides head-on in a perfectly khki59( 9v gvn3.eglfx5f;f;y k -hd jinelastic 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,r 0g 9 9nwsn)cuyccw*6 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 kinetic energy is lo *9 ncyn)wu6cr0cgw9s st in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries dvw w- 7mn-k;44ozqeo itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/bloqnk vmo4ed7z 4w-;w o-ck 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 30 *qmy*/5 r+hrcj :cppki 3x2+u0lsumz00-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1mi hq0x*/*c:ck5++ p l3prsyu2mrjzu.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car traveli9bo7yse geifc9c3fllq*l09 ),dwaf ) ng 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 ,l9 fecal sw0c i97)qo 3*lgy)bd9fef the cars after collision?

  Two objects move on a lev9ci 4 9vr)0,o-f l snxnbye:6sr(nan uel 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. What is the magnitude of their combined momentum after the uic9ln4rf ya) ( nxnbv-osr6s09:,encollision?

  A small bomb, of mass 10 kg, is moving toward the North with a veloci7j0n3oov9 e qdty 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 frag03d eoq7 noj9vment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin,7yj f50b8m(rnkvp b e5 and a 10.0-kg mass sits at x = + 21.0 m. Where is the cepm8 yrj70(bb5n5e vkf nter of mass on the x-axis?

  The center of mass of a two-particle system is at the (h+3q x-d36tfmm.xx e,k k)pu4 rm:nxje*p ac origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second massm6k mun: emq,( j4k+pxx 3)h3* pfrxatxdce -. of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.9p wenoxr 8z 39jp3r2o0, 0), and 4.0 kg at (2.0, 1.0). Determine trnj2z x3wp99r83o opehe coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at xt ggv /3gvfxylzf;;6,-v , bt(0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of tvgg tf l, f;63 zvy-xvb;xg/,mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positv 8c+ppu w3 uk:sbpo94ioned at (12, 0). What are the coordinates of a 4.0-kg mass which wills3ob:u9pkp +8vc4 u pw result in the center of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calcula/xlb+eti/- ,5f pmkcqte the position of the CM of a whole leg including the foot when the leg is st,c/xb t-i +k5pml efq/retched straight out. Assume the person is 1.60 m tall.