What is the SI unit of momentum?j3flyi rv6f 3(

  When a cannon fires a cannonball, the cannon will recoil backward becau i(ef 9pvpb1;bse the

  A freight car moves along a frictionless level railroad track atww7.u v,/ m iltbdt/k0 constant speed. The car is opeb lwm t/k07,iwt. ud/vn 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. Wxyz cvvbh 7q1)1x4ur: hat happens to q1zvcu 47hbxx:1v)ry the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. 4z(l(k,t bwuz They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which itw lt(uz4,z(kb 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 i,z.0 v*tjiun xts kinetic energy in terms of thesen,v *z.0ijtu x two quantities?

  If you pitch a baseball with twice the kinetic energy you vff ;lide65)o1 ezg tjo*-wwqww*x 0)gave it in the previous pi1; 5 6g)e)i*wdf e fowwl-x0wtzv j*qotch, the magnitude of its momentum is

State Newton's second law in ter21qeu kvbp5 *zms of momentum.

State the law of conservation of momentum. c1o z)dfclsh4q3ml94 i t2wq6

  The area under the curve on a Force versus time (F vs. t) graph representsq7 / pwaxc6ni*

  Which of the following is1/n3w*rkhbyjn7s2 m5*0s hk7 xxq ttm an accurate statement?

  A small car meshes with a large tyvq;;u-rqu yj+ b 6b9nruck in a head-on collision. Which of the following statements concerning the magnitude of the average collision force is correct?rybu6bju-9;ny+v q; q

  Two equal mass balls (one red and th oexq k cp+v.1(2bf1wee other blue) are dropped from the same height, acb f1x2.v1(kw +epeoq nd 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 with the floor?

  A Ping-Pong ball moving east at a speed of 4qjz7fbgsg,g +a -h cce87k b5, m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the boa7,q7 k,scg-e z+ 5f 8jhbcggbwling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce u,ezgnwpi(z 5.- p-m/mg)le(ev o,3 vcule k8off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.fq:xq;7jap 4* fe- 0 qait4per0-kg object moving to the left at 2.0 m/s qa:qf jit qxee7*a4;p 0fp-4r. Which statement is correct?

  A 100-kg football linebacker movi dams4 f2zu:x .6fx.vcng at 2.0 m/s tackles head-on an 80-kg halfback runn max:cf .s4 fu.v62zdxing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the mom5b w fl+8ywb8a;y*k9gpn iwd.entum is conserved, then which of the following statements is true abodwp9 n*ba. 8wyi5l;8+gfkwb y ut kinetic energy?

  When is kinetic energy conserved1 sku1c.p 1hse?

  In a game of pool, tchdkkv,e(f 9j 4 i3yse4bmo+i6/d*-/ibwvajhe white cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cuehi6me/avj bfikvo(cdw , skb /+93-yi j4*4de ball had originally. The type of collision is

  When a light beach ball roll79 i t 978fvra+ggl,uvv astj2ing with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the i2ut8vav 97+s,7rglgft vj a9collision will be, approximately,

  A golf ball traveling 3.0 m/s /z4kj4pu3i n5lmp) 1; zn qrpnto 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, th3 n 51mkpprln;4 4nz/jq uip)ze speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastyug bwq) h*e8.6gm d-sically with an identical bhg6*.mesdwg)b- y uq8all at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a ver chaz1o;0 h g4y0-kwkcy light object at rest. The collision is elastic, and t g c0;1-4chok yhzwak0here 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 with speed v-uynk9f-mv tk1z8bv 2 collides head-on with a very heavy object at rest, in vkkvy t9 m8-z1fu2bn- a frictionless 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 with a yellow ball7luec4b zs5z * of equal mass moving witeu7bsz4lz 5c *h a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with v92ka3 x,:g(fez kehyq6uzzr3 elocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, ak3egh3 qy,( zuzeraz2x:9 k6f nd 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, if the momentum is conserved, then which of thedu1ld4e-r c:z c )lcl.wgd p7e;ntu/) following statementcn ;lw)trlu:e4d ldccg-u dpe z1 )/7.s is true about kinetic energy?

  Two objects collide and stick together. Kinetic energyj6em+ga)m 4ac;66 xueoqy.i j

  A 3.0-kg object moves to twr0w+k6n a )ich5(ylthe right at 4.0 m/s. It collides in a perfectly inelastic collision with(khi)c6w 5lnra +y 0wt 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 objec4p)e7 xh q qgpkm.2+nht and sticks. Which object experiences pq.mk nhgq eh)7p2+x4the larger magnitude of momentum change?

  In a game of pool, the white cysruo qp1, 6-qgpm9o-ue 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 masser6zb w8v3o6 l5xrg 7yds, M and m. Which of the following statements is false?6yzl do56brv 7rx g8w3

  Which of the following is a false statementcyrl 53o), bx4n0 achh?

  Tightrope walkers walk with a long flexible rod in orde-5eg0pnmf .znxm-(n7qvh * zer to

  A plane, flying horizontally, releases a bomb,(u9rnwb7*a+s ov9mcwh)( bv :pwl: hq which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fvo)c*wm :hq (:bhpwn+ 9rsvbwla(9 u 7ragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was co qf :fkt+2uuvf0f;g9 qmpletely inelastic and bo0t9fq:q; kffg v2+fuuth cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of pa7tfy g ,9a qmy*+ejjf0rticles.

  What is the momentum of a 2000-kg truck traveling at 1iaa ck 4ht,59 z2ij mibom4h*35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of it ocyw uz(.*(shs momentumoy*.wuz(sh ( c?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mvs 14zh u)5tppv- dx7nomentum when it strikes thd-p4n xvsph) 71uz5 vte ground is

  Two identical 1500-kg cars are moving 0l9uhkwgh) .qperpendicular to each other. One moves with a speed of 25 m/s due north and the other move)gk w9hl .huq0s at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horn3zae u *s8 gfu8k*v-pizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentufakz p*u88sgvu3*ne -m of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is st79gej7 lpk8m*0pgn odruck by a racket causing it to rebound in the opposite direction apjng9e pg8k7d7lm0*o t 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 axd23)db h9ljm ctz v2* frozen pond. The machine fires a 0.40-kg baseball j c2 bhdld 92)3mx*vztwith 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 space-walking outside the space capsule and is stationarycu/gr3s5 ot3ml dd f dpo+z9;er u5+)h 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 uo l++du;)3dfht3sp9mc5egrrod5 z/move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object k ip0ght50sa5 at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum chth00a5psg5i k ange?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass),s,; r:z5hb g4tiv6c un who is standing still, with open arms. As you collide, while holitz 6; rs5:h 4vcgnbu,ding each other, with 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 sct2b-pz96gp hy-j 8b ipeed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is ibcy9jph82--pz tb6gthe total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopp zy98adft).o fed car that has a mass of 1500 kg and they stick together. What is the spaf 98.ztofdy)eed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, it xj5mdamm vz wf9h)2d.qc8 ++s allowed to coast along a level track at a speed of 2.0 m/s. It collides and coup8had 5wqt.2mmjxmcd+ 9)+zvfles 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 wkgy1 ,;+xfg6g gki- qkg, rolls with negligible friction on a horizontal track with a speed of 10 fgg6-xq g,wk;1 +yigkm/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 on a 100-kg log at the rate of 0.80 m/s (with respect ;d4l6ox er0ucb; met5to the log). With what speed does the log m ldcor46;5u; xtm be0eove, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to xfw*1rqf/ emsul 0lc88; gib7a.io.z 15 N and acts for one more second. What l8b.. *ax 7e8clz1 qw;f0mois f/riugimpulse was imparted by these forces to the object?

  A constant 9.0-N net foc 9e6+ yzqfzs s,z.d *kh(b5*ceszto7rce acts for 2.0 s on a 6.0-kg object. What is the object's chanh7z6z5 ozcsd.9y s q e* ,fbs+eckzt(*ge of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a k6y k)z ly)qcc a)vv*;brick wall and comes to rest in 0.20 s. What is the average force the c kyvy*k6;) ac l)v)zcqar exerts on the wall?

  A 2.0-kg softball is pitc 1s z7wya,axe85nb 2)s 5amwhut6b4 hihed to you at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was6m1hna,i u sae)8sb5wyh 4 72twx5z ab 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 befo 9/6wdlv oiju0re 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 toidu lj 6/ov09wp 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 xhgyxd(82 wr;4 c:w uge e(y)o35.0 kg, fires 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 macwg (dxx crheo(y2);e: 8yu4gwhine gun mount?

  A fire hose is turned on the door of a burning building in order to vqhd 5kg3)b*iknock 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 needed, assuming the water doesn'g5 *iv3hk)qbdt bounce back?

  Water runs out of a horizou/b rzq a9 :;;uj*rmwlntal drainpipe at the rate of 120 kg per minute. It falls 3.:;z*wjqu;m ba9 lr/ru20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velobjvdnx sv 2b08m8q0j+ city of 40 m/s after 3.0 s, when fired straight up. What avera+8s0v 8qjd0nxmvb bj2ge thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer szwr)u2,y7l hyn f-6fppw lt3 :pace. They push each other apart. What is )z2fwfy3:6u w,yp- t7lr p nhltheir separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to thyz* )1mouc-:w -4rbzevgl3ffe right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving tofzm:fu v-1z lbcgy*w-e )r4o3 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 0vc;x:8)yz .q uls8ica .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 after collisionyxv ) cl8c s8zu:iaq.;?

  A 10.0-g bullet moving at 300 m/s is fired inty+1j0ss -m2pjhz5x gio a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of itspj1z-2 sgyjx 0s5h+mi original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-vr, ill f23o9kon by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed wi fkrl l9v3o,2ill the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +:mf6 scc6cbk )10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastkmc6c:b6)cf sic. 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/sr(er sp (mp1s tywwpe8a/.da)sr 54i: collides head-on with a 200 g ball sitting at rest. The collision is perf )y4r( rapwtd5sae im( s/s8epr w1:p.ectly 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 aew1a/s el.y cn)-:yeq speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. Ifnsecq:a.eylw/-e ) 1y the collision 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 oqm9xlfj 4 lam i s)phu8)93n*xf 4.0 m/s collides head-on in a perfectly inelastip)isxn8a9 x 9u)m3mhjf*l4 ql c 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,v,5 nh9wms);-gkthb h3ww hn station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic cwhsm ; wbhhv5kwn ,9ng,)-t3hollision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself ir rk1+h3x6kg1oz 3) +lge9uc wsk0 yrun a 2.4-kg block of wood a rest directly above it.wgus39y0k +16 +)3ugkcr1elxorrhz k 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 90.0 km/h east collides with a 3000-kg car traveli)k 509k- cpqbzlwg6v hng at 60.0 km/h sc0 pqbgwv5z l)kh9k 6-outh. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 k/a-i 7qc y;j, yzi9p 33qnfoyn w.vt+hm/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. 7-1zai.3, pyn7;q o3v 9f/nt-ji y+yc qwh.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east withvt 4.5x:zuz lh a momentum of 24 kgm/s. Object B moves north with momentum 10ztl z4u:x5h .v 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 t izgb 58txgg878:zwrmhe North with a velocity of 4.0 m/s. It explodes into three fragmgx8w8m: rzg tgbi78 z5ents: 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 friction.)

  A 4.00-kg mass sits at the origin, and + hr kli/c43ok uhxme/r /1:vua 10.0-kg mass sits at x = + 21.0 m. Where ur o1 hcekv4r+/h3mi k/ x:u/lis the center of mass on the x-axis?

  The center of mass of a two-particlzcc92u te(oqg 9-ltkcfcq6(5 mz 9t u6e system is at the 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 mass of 3.0 uz 9 cf9g6 o(q-zulm(t5t29 qctcec6kkg?

  Three masses are positione 0fb9,z.:lfq/tbbuh2ae* v ikd as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the cente 0zuf :29 ehtqab,*kbl bi.fv/r of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 mn 6vjl)g0ek )j, 1.0 m), and (2.0 m, -2.0 m), respectively. Whatev) j) 0ngklj6 is the location 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 positioni ylnw ez 72htqop0.8-ej.eo( 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 n 2o ey.0(zh8e pjlotew-q7i.masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg inc;4 wscnps tgvbl+z53pslj )8du r6(r94yio l/luding the foot when the leg is stretched straight out. Assume the person is 1.60 (l5gj;o4u sr wr/cn694 pzs3)ltyvb+8 isdplm tall.