What is the SI unit of momentumc 0sbeau pl; ef:3-k0s?

  When a cannon fires a cannonball, the cannon will recoil backward becauscc0fp0 tfk y)(:oex3 ge the

  A freight car moves along a frictionless level railroad track at constant spejr/vxb7 3y tt1ed. The car is open on top. A large load of coal is suddenly dumped intbj1trv/7yt3x o the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding j.h8cn .sbvh6v72nto on frictionless ice. What happens tn tcv. v h.s28jb67onho the velocity of the sled?

  A rubber ball and a lump of putty have e8naho i 6jgt,4a0g-zy 7:peio qual mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit.y 6zie,n0i jaaog7:pth8 4 -go The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. Hoza5(4 fzbnuby 3 fqd.p2kmfz( (z-l) qw would you represent its kinetic energy in terms of these two quantitieszzbff(p u( fl52k.(dm-q) zaqzyn 4b3 ?

  If you pitch a baseball with twice the kinetic ener bpe-8 kd6on dnwjc,7kf 8/ m)3gxg7qagy you gave it in the previous pitch, the magnitude of its momenp87ckekjmgbn n876 -o ,xfdwgad ) /q3tum is

State Newton's second law in termsk.n / v;bcpxjl5a8 ; l-m)hhtk9f:mej of momentum.

State the law of conservation ofy6o p, 0g.p4gvucao.c momentum.

  The area under the curve on a Force versus ti:, /buya ,nxerme (F vs. t) graph represents

  Which of the following is e,q(h zsqk.b5o r*y7can accurate statement?

  A small car meshes with a large truck in a head-ndhetqh 98m;a:5oy ).p pu9vzon collision. Which of the following statements concerning the magnitude of the average collision force is. qtah)ep:m;8 d oy5pnh99uv z correct?

  Two equal mass balls (one 8n ud5l -* i;w.ujvnipred and the other blue) are dropped from the same height, and rebound off the floor. The red; j-vpu8d. 5iwi*nl nu 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 6pud*1ha 6cj;gp sad5east at a speed of 4 m/s, collides 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 the greater magnitdp 6adau*5;cjh61gs pude impulse during the collision?

  Two objects collide a 8xc w5gf.i: kv /1u0+esqwuqpfd:w.i nd bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides heue yw76q8p 0k0bpb/ woad-on with a 6.0-kg object moving to the leftpbw 8kpyu7w00/oe bq6 at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker c-jjkv)u2f o.w9wwi 5moving at 2.0 m/s tackles head-on an 80-kg halfback9jwj2)5 v-ucwk fiw.o running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conser + m*6;qahmhjy,:xoh*cu6 zny ved, then which of the following stay6*jh+h cu*:a m q zy;xhon6,mtements is true about kinetic energy?

  When is kinetic energy 2 zr qk-dik1xng2z/8k conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 qb-mknv:6jd+bo: ss6cj (cpdk 8xx( + ball moves away with the same velocity as the cue ball had originally. The type of collision ic- ksx+cxqs nv:k(m86bj(+dbd :6p jos

  When a light beach bay ;fu;8kpp0n2 bbz.n z w0sm,6q4 uugall rolling 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, approximatelpz02 yg6;uz,kfuuqb8b.a0sp ;nm wn4y,

  A golf ball traveling 3.0 m/s to the rigbsm fc41(nj2lvq x+ 7yavjr+vs6+rg-ht collides in a head-on collision with a stationary bowling ball in a friction-free enviro7+vlgbr(vya 6 s2fx+ jqsr- vjm41c+ nnment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speedo* i+/ orf2 -+ornsacnqi65lq of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed orn5 ia -26/nolqorof++cq * sif the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very lighe0 9ael)epo u;t object at rest. The collision is elastic, and there is no friction. The heavy object bao 0ael; 9e)peurely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides head-on with a very heavy objv+92,d3cwe desj(sw l f vzcw-2ij /z*ect at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed o9zfw v j/s-2+w, lw (3jecs2ziv dced*f the heavy object after the collision is

  A red ball with a ve35ru 9*ak 4s/6mparluvrwlh/locity of +3.0 m/s 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 ya/*krpr9 wru/3v alhu65 sl4 mellow ball after the collision?

  A very heavy object movil1autwn,b,k xv)-ox i i;y2 ;dng 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 heavy object barely slows down. kv)o;2n1xix w,;t,d -a ilb yuWhat is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is ck9., zmluzq7 b t l ev4-/,ot6l0bbvouonserved, then which of the following statement,lb9 e6o tlqz v.lbo 7 /-u0uv,bk4zmts is true about kinetic energy?

  Two objects collide and s;v uobnxo)k3+tick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectl6l 2:h+;spmniva+ccm y inelastia:+2 cmh +snmp;c l6vic 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 collides with a large object and sticks. Which object experienbz/j:ja;p u n91 h3dcnces the large3 ;aj1nhz:cj/ dp9 ubnr magnitude of momentum change?

  In a game of pool, the white cuei9 e8u d2iffb-r+o n8e 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 and m. Which of the following statements isbklcp :7ivpnx n45 *8g false?lgc4pbnnk:v*i 7 x 5p8

  Which of the followin4l9 -zvestbw5y *n 4fpg is a false statement?

  Tightrope walkers walk with a long flexible rod i0p(4 fjnb85wil)ep jsn order to

  A plane, flying horizontally, releases a bomb, which explodes beforej2r,9k z taw.*fim-xa hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just afte za, f2*a.rw kji9t-xmr the explosion

  Two cars collide head-on on a level friction-free road. The c*h03; pgdltwuqokx 91ollision was completely inelastic and both cars qu xw t1kd9hu03q*lg po;ickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law f c,ctjv3ak7a3nlx +il7 u/v o*or a system of particles.

  What is the momentum of a 2000-kg truck traveling );gq +kme2 np7vwfo1 -gyrm1b+qw6gm(e jw )eat 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the x:qiose82* gd magnitude of its momend8 xi*:sqego 2tum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Itda2wloz5+ m+ ys momentum when it strikes the gro 5 m2++woyzadlund is

  Two identical 1500-kg cars are moving perpendicular to each *wj084og dysb ye,f(eother. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is t jod*w 4eg sf8,e(byy0he total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontalxi :02 btt u8w1k5rhouly at 30 m/s, strikes a wall and rebounds at 24 m/s. Whahkruo5t 1t:b 820uw ixt is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is;soif.l jps(al s4 vznx0 :i./ struck by a rackeni laxvs;f:i4z(..s/j 0s plot causing it to rebound 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 basep :/c.ngmhew6i0;y jp ball) is placed on a frozen pond. The machine fires ci.pw e 0m;: yph6n/jga 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 negligible friction.)

  A 70-kg astronaut is space-w7)myf; yi2p asalking outside the space capsule and is stationary when the tether line breaks. As a means of returnsyma2f7)iy; ping 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?

  A small object with momentum 5.0 kgm/s1 oglldpp5xjf*/* o-ezi2 s+o 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 the magnitude of p-*ood 5+*/gpx o jlfles2z1ithe large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet yovg:; akpe*2o aix+hc7a ucc50ur friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you bvx c: iua *a7+ ehc2pa;5kgoc0oth move off together?

  A car of mass 1000 kg movexepgg6/6tr -js to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcyr6 p-je/xg g6tcle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car travelixw1hrah;rgfcvwr)y60o0l *1l6 u2 wtng at 25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of t; 2w6yl)106org0*h1 r wrfvcatwxluhhe cars after the collision?

  A railroad freight car, mass 15,miwihp1. pvld boa1 s7l1.u) 7000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It colli.si.al h11idpmu)o1 pw7b7l vdes 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 friction on /mlrm (ej c,mfmn 1::ua horizontal track with a speed of 10 m/s. A 70-kg stunt man dropsl(:n,/urc:j1 m mmefm 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 1+. 21vka nz)tknbvzt/ m6fjs4ve/ k-i00-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 the shores /vn1+t)-26in 4zvf. kjmezvakk/ bt?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly incre sl/*bwghks: ( iljb- xwl03v1ases to 15 N and acts for one more second. What impulse was 1lw bsg/ :lbs* jw-lh03ix vk(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 the objw+9bw7xxf2s6d h3 v,kp 3okkject'ssdf7,xok23k vwk+w6xp93b hj change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides zo5)a9, jzo-u5rcsul c 4dni:(d i*if with a brick wall and comes to rest in 0.20 s. What is the average force the car exertucdilcu5*5 zos4:anr(o,z-ii 9fd) js on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along the 0 cp3csbpbov-o z- 1y9ot7kn,same path, and at the same speed. If the bat was in contact with the ball for 0.10 c b9,n zyps-okcb7p1v oot0-3 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a tablerb i, :gvnkjk 7ce t8us,04:lq top. The speeds of the ball right before and right after hitting the t8bjtkr:, qvusl 4 kg ,:en7ic0able 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 force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bubzl g6y0iqmgy3 )ba5/ llets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per mg 63mzya0)ibby 5gl/ qinute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in orde/f p )/tuj;foyr to knock the door down. This requ)/ft j ;pouy/fires 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't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 )ga+inw v4r)ciethj ;m 80+h gkg per minute. It falls 3.20 m to thwvi++ ga))0mn4cj;8ir hgtehe 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 velocity of 40 m/s a- 5s sg 8ql5tk4 n)y4b3wrdiam amc)4zfter 3.0 s, when fired straight up. What average thrust fo4)5mr45 na )c-sb4ldas qygk8zm3iwtrce does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are inisw mw+j*vv) ad:e7i:mo1 tx3ktially at rest in outer space. They push each other apart. What is their separatioj e7v+:kam s wd:ixw)vt1 m3o*n after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides i*4.ve3 iyeby 9rcy/yvn 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 afte vbyy 9rcv*yee. 34y/ir the collision?

  A 0.10-kg object with a velocity of 0.20 m/sykarkxj;/3 tzbr3;6.9ppzcb : xg,ms 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 z; bxr6;/jb p3:tsk.,k rpc3xm9aygz after collision?

  A 10.0-g bullet moving at 300 m/s 5ah zd,vk/5;v 2 bmfpood+ m/eis fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in td/hao5zf/ kobp em + 52vdvm,;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-*gd6b, k3x9z a*)c mgv ilxrf struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. Idbgcxiz x)3rakm*,9 v l6gf*- f the collision is completely 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 colq+3xjp60v 8kp5v:9vngp eu xzlides head-on with a stationary ball of mass 100 g. The collision is elasq39nv+kx g5:v jpvp 0p x68uzetic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving towaf/-b:t*h,z vwitmpbayl i /2;rd the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. Th/ay ibf2z :;,vphi*-w /tt lmbe 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 head-on with 6zkh3 ja 81ipya 3.0 kg mass at rest. If the collision is perfectlyjiph6k yz18a 3 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 colli-tytf5qd2l 9;1 glr jhdes head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during f lqyhdltrjt2;5 g91- this collision?

  A car of mass m, traveling with a velocity v, strikes a pat gh.j83h et-prked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic coltjt3 pgh- eh.8lision. 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 i1mvdfupwt+4ljwkv 8(f* *7 man a 2.4-kg block of wood a rest directly above it. As a result, the bullet/blow+lu jmk(v w*ma8 ffd1pv4t 7*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 quz70ppkg4(kq4 z ( rfeast 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 thz47krq4up0fzqp( g (k e speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car h. 6yf/kpw5i,8rgy iktraveling 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 the8/ yhi6 y,kfwp r5kg.i cars after collision?

  Two objects move on a level frij1xdao67pyy ;( bb-da ctionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north ypb- y6o aa;1(7xjbddwith 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 the Nort1 ueqc+ih,m(p1kx /oih 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,oheqk(i1ux c 1 /+mpi kg. What is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin,hc9vk 3 f)nfh( and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-3 hhvnkf()9 fcaxis?

  The center of mass of a two-particle system is at the origin. wxu,:ezivdj-r8i r.h1b k,ig0gkd4 4One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the secork, whj vr,eb0i. 4 u ix1g:zid-g4d8knd mass of 3.0 kg?

  Three masses are positioned as follows: 2.05q(:m:(dgmo;,i ocn locs 5ox kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of nx:c mosi ,c m(;dlq:g(o5oo5 the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locatedlvr16xxajf 4+i; j1ga at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. Whatg11 4 ;fxrxila j+j6va 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. pwl /c tskfxj*inwl32359/:fhpwxa 8 0-kg mass is positioned at (12, 0). What are the coordinates of a 4.aj*/lwwp/ pfx8xkhi5fw:c t3 nls39 2 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 calculate the positio: mdf.xzf (k)wn of the CM of a whole leg including the foot when tfw x.)( fdkz:mhe leg is stretched straight out. Assume the person is 1.60 m tall.