What is the SI unit of mome3hg+l3x/kowi)io 03h6ew diantum?

  When a cannon fires a cannonball, the cannon will recoil backward bez.sm:rl8p h) lcause the

  A freight car moves along a frictionles-vh0a7bd h7pn 9lk -s t4dr0ehs level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. W -ate0n 7 79lvs04rkh hd-pbdhhat happens to the velocity of the car?

  A child falls sideways off a sled while sleddi ifk 4- p8qm,r+ixout583jivqtb6l )7vy1c qing on frictionless ice. What happens to thei8um536l-4 ciby x7jtq tpr oqi)f8k ,+i1vvq velocity of the sled?

  A rubber ball and a lump of putty have equal mmss2 +nw bl(x02vd)f tass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objec0b+m( swl vs2dx2tn f)ts experiences the greater momentum change?

  A sailboat of mass m is moving w0 oaig, ldtpzv-3k a9*ith a momentum p. How would you represent its kinetic energy in terms of these two quantitiea0az3vo g,di-tplk 9*s?

  If you pitch a baseball with twice the kinetic energy you gak+eqo* j(cf6qav r4i+ h3ml+w ve it in the previous pitch, the magnitude of itsc+ qof4 mie6+3l vr+*( awjqkh momentum is

State Newton's second law in terms of momentu4a ;1 gq1o/d2nw q-acpt,q qlw9shnm3m.

State the law of conservation of iwen sh 4ks5tw45k09 h n0nsz6momentum.

  The area under the curve on a Force versus time (F q f,n+rz5 ap:ovs. t) graph represents

  Which of the following is an accurate s5 )s7vm/4 9+odsclz2dw4nj3lag vxavtatement?

  A small car meshes with a large truck in a head-on collision. Which of the ,yh; iw3ac*qio2 z/9sr5ldar following statements concerning the magnitude of3l , iard/i q*5;ory9cwas 2zh the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the sam s;o5i:0qkjal ; ushob:4rwy2 e height, and rebound off the floor. The: lka:;qu sowiy;42hs5o0jr b 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 4 m/s, colliu r9+he;gi :+rbu(luzpx b3n0des 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 experience+brr+ u gl9 i(p0u;3eunzhx:bs the greater magnitude impulse during the collision?

  Two objects collide and b vi2a0qw x5g;j gt2cn3ounce off each other. Linear momentum

  A 3.0-kg object moves to thn(1k , jbjh vvw*dudswr8+. dd 4f.xq77lx 0xpe right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement i,.0 wwj(hvxd. k*7f+1xd48xjdu q7 vlsb rdp ns correct?

  A 100-kg football lin+vi8p3; y op,oj9 dnf;(klyh 4fbapr/ ebacker moving at 2.0 m/s tackles head-on an 80-kg halfback f/o+; dpr(jbh3kv;i yla4n,8yp9 pfo running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, t mky9g3f0jsi:x mv/7then which of the following 3vjkf0 gy7sx/t9i m:m statements is true about kinetic energy?

  When is kinetic energyj/v1/v:*qzeql8 vuwh conserved?

  In a game of pool, the white cu,(/:gts)ecm k8 ewn fee ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. Tckmngsfet,/:) e(8 ewhe type of collision is

  When a light beach ball rolling witc6kuyy+j jjs;e k3) z-h a speed of 6.0 m/s collides with a heavy exercise ball at re3 c y;6zj)es+ujy -kkjst, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collisiocxz6u )tlp4g- n with a stationary bowling ball in a friction-free enviro4x)z6lupt -c gnment. 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 ns g18il (wq+qm/s collides head-on elastically with an identical ball at rest. q +gw1 (8lqsinWhat is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v calo9 kchyy(i 3 *ubp64ollides head-on with a very light object at rest. The collision is elastic, and there is no friction. The hu3oc4ya9yl(bh 6i k p*eavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v col1bal5r q;xx8 ikx 4mo k-tr*c. u*fen;lides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfeq lxa4rrc;x8nk bm k;1ox- ei* *t.f5uctly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.2 d/s qpwf 6 t;; 1y1t)vz4yyuiprmu6y0 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 o)u1vyytr;2/yd ;6 4 ipfpq1yzumtw6s f the yellow ball after the collision?

  A very heavy object moving with velocity v colliq -ob k.8olk1qdes head-on with a very light object moving with velocity -v. The c 8k1-k qoo.qlbollision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic colltj-) bq4fk y7x9bss/ lision, if the momentum is conserved, then which of the following statements is true about kinetic enerbjs9ys7t q b 4lxk-/)fgy?

  Two objects collide and stick together. Kineticvj/ zs 4 ksj*lvzd57t8 energy

  A 3.0-kg object moves to the right at 4.gs+ p4;p.e/ym2 d-q* o xzhmsv0 m/s. It collides in a perfectly inelastic collision with a+p p mz/ xm4o sgsyv2-h;qe*d.
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. Wh j :*rrzn1 qveh2rns4), ub*nyich object experiences the larger magnitu:uq) nvnb *4zrh je*2r nsr1y,de of momentum change?

  In a game of pool, the white cue ball hits the #9 ball aji/,6xz vg 7gkp *rzm0j8/t xond 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 - em)l3wo xf7wq+n4c) j+ktm nthe following statements is falsx3) e ow+ 7nf)nj+ wml4t-ckqme?

  Which of the following is a fx mpg,b r52/vsalse statement?

  Tightrope walkers walk with a libduy.gs e4 :hu)w p46ong flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hittq0 ,xbrin/kuae2 *at z 7c;/hoing the ground. Neglecting air resistance, the center of mass of the x/z7, ea20cb*ok;aqnhuti r/bomb fragments, just after the explosion

  Two cars collide head-on on a level fr h3jx4(odziiy8 ** jy-iv*o aziction-free road. The collision was completely inelastic(yzh8 j3-vi 4x*o*d *ijz iyao and both 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 powycp aa(40 )fl4o6heruv u/) articles.

  What is the momentumx0 *: j,xws h nm,um-z 0-gn3vzadi2ta of a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south7.wfle h/um(z at 20 m/s. What is the magnitude of its momen7lf u .mwh/ez(tum?

  A ball of mass 0.10 kg is dropped from a height of 12 mpy gqpu3w 10:q4sf8 qq. Its momentum when it strikes the 4 gws:1qufqqqy8 p03pground is

  Two identical 1500-kg cars arv)3i8mr 34 (dbyq2.mpwu ocyse moving perpendicular to each other. One moves with a speed of 25 m/s due north and tiyq3mdos)ywcb. r34u v8m2p( he other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 3fu 1vejv8xqn-2s0w 8et rms2*6kcq;g0 m/s, strikes a wall and rebounds at 24 m/s. sk stu* nevq-c8grf6xe1jvw 282;m0q What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a s,sdn:eez 5 te7byq/h/peed of 12 m/s, is struck by a racket causing it to rbh ede75y, t/nq zs/e:ebound 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) ishde(q.3 (hemb 6f;b-yx3.yt c qyi hz**e+nwf 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 recoil speed (xhqyi + e ywec6z;ht3fn .bm*qy(-.b3*de fh of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and sx;,9n( sbfsfs v8s m2is stationary when the tether line breaks. v ,sfsxs 9bs(2;s8mn fAs 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?

  A small object with momentum* .i7jdvgc id8o;xvx (0k.asm 5.0 kgm/s approaches head-on a large object at rest. The small objec.c xdi*; gja80diovx(.7m skvt 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 to greet your friend (m 6qe,gix *0nr40-kg mass), who is s, m *rne0xgqi6tanding 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 l5h5a20kmgqa7 -h x nzmg.)gshevel, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kkq0ah s-g5n az5.mx ghgh)m27g. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopp 5f2fe9fy+)s) i(aongtx y pu+ed car that has a mass of 1500 kg and they stick tes2+oy( 9 f+xfuiafg)y)p n5 together. What is the speed of the cars after the collision?

  A railroad freight car, mass4xsnn ioqr1 ;+o5c;k g 15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest and with brakes released. What is the speed of the two cairsoqnc+1ng;5;k4 o xrs after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizontal tx*fyu,( ovk1n0 s qb/track with a speed of 10 m/s. A 70-kg stunt man dro vt/kbosy, *uqn( xf10ps 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 m r.zcz4tphpy .n x)mx.ma ;4,respect to the log). With 4p)p mn,t.xa zzrc ymx .;h4m.what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an zrl d,p1j f.z:z 7y )-9migqqfobject. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the ob 7z, jf.z -mglrqy qzf9id1p:)ject?

  A constant 9.0-N net force actsvd x. p/a:u(yzr 0nb9w for 2.0 s on a 6.0-kg object. What is the object's cha(yza:rv x /.9bdnwp0unge of velocity?

  A 2000-kg car, traveling to the right at 30 4vf* jqs2mk m4 g1c0fcm/s, collides with a brick wall and cof 1ckcsj0 *442mgmvf qmes to rest in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. Yo,m b9hfb :9occqnlt /jz 0j9,bu 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 average force the baco:fj b/9 ,t0jl,9bc nbq9hzmt exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds oy(fn:(u+jh qkx7. pqnf the ball right before 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 u k: q(.qnyn( j7+hpfxis the magnitude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg,xnox7 z 3ea gqns71+g0 fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 xaq+go7n3s 7gzx 1e0nrounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning buildinz4ubvu 0f4ikl3q n m36g in order to knock the door down.l6i 3v4n 4u0z kq3umbf 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't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per mihg91z1 s1 c g3jdh1agxnute. It falls 3.20 m to the groujhs1 zd1g3h 91gxc ga1nd. 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 after 3.0 gm5o/ kxa.,/qyihmiw;q da; : s, when fired straight up. What average thrustmqk;m5 o:d/gaa;yhi.i/, x qw force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 8kn )5cjw/ r t36fheono4si) 7q0 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astroo7o q4fe i635js))t/cnnkwrhnaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It colq/ 1wh*iwf:xnlides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m w1*wqh/xn: if/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction ma)p jr+ szk4btr9 yrbj;u.h(7i kes a head-on elastic collision wpk(yjir)hs brzr.4+t;9 7bu jith 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 pl)otmovfm ;3s0(q 0u300 m/s is fired 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 bloc0s l0m v3op(u;)f oqmtk right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-pu+/jjz)6o rbharticle (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? (Assume the neutron's mass equals the jbo/ h+)6jr zuproton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of masf7.,(+ l7 qixs kguidusw w00ss 100 g. The collision is elastic. What is the speed of eacq(w0 7w+u l s0xii.d ,gfuss7kh ball immediately after the collision?

A ball of mass 400 g moving toward the east with a/ho;ow9ugsu7hbx2 i9 speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The col;7s/igw 9ou xh o9u2bhlision 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 hea01ucsxco1 glr0t3 8c jd-on with a 3.0 kg mass 3x8ou1rc ljc1 0tgc0s at rest. If 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 speed8, 6v, ahj ln 9+q9qsivzv6vdren.hi0 of 4.0 m/s collides head-on in a perfectly inelastic collision with a statio9v+ v,q rvz delas8 .i,jni 0hv9nq66hnary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, travelinggat.(*zq.p9 mgh0wq 4x6lu dg with a velocity v, 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 endazq.m4pt6. g0g(xg*hl9wqu ergy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction b f tdgv91r8fw9 cz+ f4eh(tk(furies itself in a 2.4-kg block of wood a rest directlgd h1f(vftw9z(f9c8rft e4k+y above it. 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 easte 1pb*sabw y9; collides with a 3000-kg car traveling at *bs 9;awbe 1py60.0 km/h south. 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 travelinghsi1 m -;f/nw,eferxor7s yi7u (3 rl, at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h sou uesxfehy7w 7ir3 l,r/n1-sor f(;,im th. 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 lxz8 k*kfuui 3cy 2.946qn .yvzpa8ok cevel frictionless surface. Object A moves east with a momentum of 24 kgm/s. Obje8vkzqupn c yf z ku8ac.k32yo964i*.x ct 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 the North with a velocity oc8.vcl h c-n6uf 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 velocih-6vnlu8c .ccty of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the8)smqb1;t)9 nzq bded origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x;t dbd)1 ms 9zbqn)qe8-axis?

  The center of mass of a two-particle system is at the org* bvk*in-evwq)*3 0em+ho zbigin. 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*qn bovve0z+3 gw be)i m*k*h- of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), a5s1oiur1 ve0q2c ym-xw la7u3nd 4.0 kg at (2.0, 1.0). Determine the coordinates of the center o0a rqe73oli5muuyxw 2c 1s1v-f mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locat5 p-k0mmk)jaet zr tgj.u(* d;ed at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respect5t.aj); mepdrj0k(gt -u *km zively. What 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 positioned 7j ehbc2zf ( st(cbn-:78d nuemn0f1h at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of theh2n :f t(eh- z(8bbu7e jnsc07cndmf1 system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calrj .,zdkd7c (hculate the position of the CM of a whole leg including the foot when the ,. krcjd h(7zdleg is stretched straight out. Assume the person is 1.60 m tall.