What is the SI unit of mo5pbe6, 5kcsgumentum?

  When a cannon fires a cannonball, the cannon wiygx a v4pw.7c*uq4 4soll recoil backward because the

  A freight car moves along a fricti3o ut8iizv-7aonless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into theo8z3 7iiav-tu car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What hapms qvu5 ce*e:j;w- ss)pens to the vsee;:-uswv 5 qj *csm)elocity of the sled?

  A rubber ball and a lump ofidyyn02 (o +heyy1u7 h.n2a s3m)mbx u putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit ( 0ey2.7od b) imuymy2hu1nn+ha3ysx. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momea b+(p1 cfvsy+p)ws7: ygn*nlve f/b 1ntum p. How would you represent its kinetic energy in terms of the gb(f* nv :pwbc+ysyp vs1a 1l/n+)f7ese two quantities?

  If you pitch a baseball with twice the kineticb/wo:(c t//x ojiwsoh7- -lrq energy you gave it in the previous pitch, the magnitude of its momentum ij(i///qsw -oc 7otx:rwhbo -ls

State Newton's second law in terms of momentum.t8c+ owb1p r+0 uwd;up

State the law of conv a o+ 1q qisxcx)way:5j6g7r(servation of momentum.

  The area under the curve on a Force versus time (F vs.sk u5q +g+dyu. t) graph represents

  Which of the followiadf)8la4d *n i5 au0/d6pvkyh ng is an accurate statement?

  A small car meshes with a large truck in a head-on collision d 6blfx.v-k6j. Which of the following kd6l6 b.- xfvjstatements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the otlbf -5 z )/nn((e-sj twircf-oher blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to ( jz w/f)-( cl5n- t-fisoebrnthe greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east r3g.ltr*rpc qtv ) ;n(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 magnitude impulse during the collision 3g ptr(;rl)t .v*rqcn?

  Two objects collide and boyqg15*qqx 9qa unce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4y8d53 ev3 xzy3whrt 7k.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is corre k583 3y7zytwhevxdr3ct?

  A 100-kg football linebacker moving at 2nyqiw 53+xp),8)g xgpkww8yl.0 m/s tackles head-on an 80-kg halfback8x58lyw 3 igy)gq+,)wkw pxnp running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if.ycxke*3oqk et9 ) khxk8eb a 1q+bp8) the momentum is conserved, then which of the following statements is tru+ 8*qh1kk 3b)apc oytx bek9eeqk8.x)e about kinetic energy?

  When is kinetic energy conservedrs* 2+wbgp7wv?

  In a game of pool, the white cue ball hits w4c) d:mb.lcibwo( o*the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue balomc b wwo* b4ild:.(c)l had originally. The type of collision is

  When a light beach ball rolling wt kk4*h7;tslifb* r/+ fbyet/ 1c*aqfith a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speek / *tkfqf1+tsit/b 4bfy *cerh7;la*d after the collision will be, approximately,

  A golf ball traveling 3.0 m/s tocudr6 hw- :nblcr:f8 j )x,.eo the right collides in a head-on collision with a stationary bowling ball in a friction-free envlebcdr n)8rwh6 ujxf::co,-.ironment. 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 collidlg;km(1zy t s*es head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after z(*l; y1 gtsmkthe collision?

  A very heavy object moving with speed v collides head-on with a very l15zok 3ohxbp6: dvij6ight object at rest. The collision is elastic, and there iz6k3v:5dxi1o6 b hjo ps no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object t60o20 n vjonjph0. zomoving with speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfecj.oh oz n2n00t6pjo0 vtly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides heafrh m*6 b81iwod-on with a yellow ball of equal mass moving with a velocity of -2.0 m/ior fh8* wmb61s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a ve x2x: o-w9xa-3bju2 0t1 .pobjyiqhz jry light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the l.aqix 1jhz 2jb0 oxjbwx2-9u3t:oy-pight object after the collision?

  In an inelastic collision, if the moo1 i-b z bd:03lmoaskot/dz1.mentum is conserved, then which of the following statedos-db 11:3o/blto.i 0mza zk ments is true about kinetic energy?

  Two objects collide and stick together. Kinetic zzt7.-ezjgw 7m; ug(7cix io11;cl yaenergy

  A 3.0-kg object moves to the right rv0s3s.f- ywugavd/( k in3 j2at 4.0 m/s. It collides in a perfectly inelastic collisi-.sun(f3srkavgv2j yw0 3d/ ion 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 experirx g7c*ak2p b2ences the larger m k2g*ap7r2xcb agnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 bal 28tnyv (ot-uqvv+b) pl 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 zmph )(uf35zws s+xo. masses, M and m. Which of the following statements is falsez.+w m)3zosfpx (s uh5?

  Which of the following is a false statem1/vb.sgn 0 rkqent?

  Tightrope walkers walk with a long flexible r12bhu f+i x-nip1l q2rod in order to

  A plane, flying horizontall0tgg6)z+ um:hi vr 44jj 5nwijy, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragmezgt0vw4i 6r+gjjn mu :)i4jh5 nts, just after the explosion

  Two cars collide head-on on a level friction-free road. The collisjsq a+ gw5w)ff478 atnion was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity o+aja84sgf qf 7wt )wn5f this system's center of mass?

State Newton's second law for a system of p,v +rdo.*szpx1 lb: l.grccd,articles.

  What is the momentum of a 2000-kg tz.xiu/f kja- 6ruck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of hxyzf67 g-j: d9.ogjsxm(-ll its momenmj (jlyz-dx-gls:7hg x6f 9.otum?

  A ball of mass 0.10 kg is dropped from a heigh2mpjp8vj, 4o lt of 12 m. Its momentum when it strikes the grounvpjl jm,o842 pd is

  Two identical 1500-kg cars are moviw 7lwseux5 ./yng 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 w .e5ysu/wlx7 the total momentum of the system?

  A handball of mass 0.10 kg, traveling hori9 beywby6m l/l+p6j1w zontally at 30 m/s, strikes a wall and rebounds atwp 61mbyly/ejw6b 9 +l 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12-i5yp 8 dyxtj. m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the ch - 5tyj.8xiypdange in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on ( uery ljo:vi3- /e,dla frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in 3jo(:-ei,ld ryvle/ u 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 capsul 8 z(ijl;svk,x/. /pcz lbm:qje and is stationary when the tether line breaks. As a means ,qj:ls/ ;z/ x bp.j8(vmzcilkof 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 5.0 kgm/s approaches head-odc e5t9jip)7g k7yt1wn a large object at rest. The small ob)eci 1gpd5j ktt7 79wyject 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 (40-kg ( phyio .jl,p;rr9;ely v(lv4*qz g0gmass), who is standing still, with open arms. As you z, lqlg0p4( *y; lr(hvg9rop j;e.vyicollide, 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 level, he,:jq n5 uc2brf)gme/6p oehn8) e8gstraight road at a speed of 6.0 m/s. It collides directly with a stopped fp,)8o 6/ gen chhen )qg 2m5rebu8e:jmotorcycle 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 x7buz y4u/crf51pgvnm:q2 1qa ; p py4stopped car that has a mass of 1500 kg and they stick together. What is the xf4n v p;74u1guq5/p1apr2qb:zyym cspeed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along :j dakfqf1q+1f4:w cva level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg sew: f:qqf+ kjda4 cfv11cond 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 a horizontal kn+d l;y1j8h*5c1pcuw,piz z track with a speed of 10 m/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 happz* 11uc8 l,kh wyj5;cnzd +ppiens?

  A 60-kg person walks on a 100-kg log at the s boh32pq5:if rate of 0.80 m/s (with respect to the log). With what speedfi2hb : 35posq does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The forc kr4i oltm tjbh.9750db 85flde suddenly increases to 15 N and ac5798tk4m .lo ildrt05hb f bdjts for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts vn*: +yfm,sa e6vk82cmez.x r for 2.0 s on a 6.0-kg object. What is the object's change of velormv+e2z8ave ,s* yk:6fn cm.xcity?

  A 2000-kg car, traveling to the right at 8ld61g0 cwdxk. s cwhysi9met, d 0;a(30 m/s, collides with a brick wall and comes to rests0glws ,wadmd1;k .y0ixc9(8d te 6 ch 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. You hit the bub+ /rm .nofb-all 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 bat em.b/ou- nfbr+xerted?

  A 0.10-kg ball is dropped onto a table v*wu.(0jd)n to x9 hdgtop. The speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4. d(n )gd.*u 0hj9owxvt0 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 muzzle velocitavg pn7; /2o8 owojrz-y of 750 m/s, at the rate of 300 rounds per minute. What is the average foro7jao2 vow /-rnzg 8p;ce exerted on the machine gun mount?

  A fire hose is turned on thetjbk i)e).7cnwm :4 jz9) prqx door of a burning 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 theizjcjr7ep)4xm9)w t.) n:kqb minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainp4ij00i*pe he pu+x,w eipe at the rate of 120 kg per minute. It falls 3.20 m to the e0hw +*4i epeijx,0up 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 velok-o*lrh:6 u gpcity of 40 m/s after 3.0 s, when fired straight up. What av-*rkuhp6:l go erage thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer m )kdc3 dx/,xdtb:tl.space. They push each other apart. What is their separation after the ligh3.t /:mxt dcbdk xd,l)ter astronaut has moved 12 m?

  A 3.0-kg object moves to the right withtwfly5-6ihh y e5;*kwu 0x (xq 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/s. What is the total kinetic energy after the co6-qw yke *y5x5ilu(f x;wth0 hllision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a hea)wg9v n6 xws8cd-on elastic collision with a 0.15 kg object initiallw c xvsn8w9g)6y 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 isbpd1kuc yk); va9 .zz:bukdc ). 6fj5r fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not gbj 95uydz6d).) rca1.:f;c pk b uvkkzet embedded in the 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,exz-zb4atv/g3mz xdv(t 4utkm0 c/:* is struck head-on by an alpha-particle (which consists of 2 protons and xm zm:4 x ez0z/t ktavcgdb(4-3ut*/v2 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 proton's mass.)

  A 50-gram ball moving +10 m/s collides head-or5w2; wsvcu po:8rul:n with a stationary ball of mass 100 g. The collisiowp5:wv; 2ulu:sro rc 8n is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g movingczk(6l byv1i) toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sik6 iyzb()1lcv tting 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. .dvlcv;ocgbe cy52./i) et;t It collides head-on with a 3.0 kg mass otvv)d c2g; 5ec. /;by.ecitlat 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 speed of 4.0 m/st *tljrst,7g5 collides head-on in a perfects ltr*5,tj7 gtly inelastic 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 parkb6oh 0:fg7w,egodd z ,ed station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy h od,b6fw70g,d oz ge:is lost in this collision?

A 15-g bullet traveling 213 6d*2 t1vz yh vs:j*j*t n;fglcm/s in a vertical direction buries itself in a 2.4-ktjznfty*d cgs1h :l v* *2v6j;g block of wood a rest directly 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 east collides with a 3000-kg car trrfu 32ha,sp) taveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars afthf, )2ru 3aspter collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car t6r m+a de7b) wz5: xi2hb.kwt/q0 2ltoedi.pf raveling at 60.0 km/h south. The two cars stick together after the collisioqr/a+2b)bdpw5exti 2oh 0k z7d6.l.: ie m wftn. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a lec 94yq3io j(lavel 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 collision?(i l9j q34oayc

  A small bomb, of mass 10 kg, is moving toward the8q3i-0,ve 9eig xyjgp North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment movi8v-pqejgiyx 30,ie9 g ng 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 a 10.0-kg mass sits at x = + 2g/e b +8 e: 0f/mk:c(yk k wlynp1n2w6gidtxx41.0 m. Where is the center of mass on the x-axis?(+ 4xy1 eeygc 6/8f 2l/gd i::nw m0pknwktxbk

  The center of mass ofukrrffj7/* b0 dn(pp a wf:yih.-,yv . a two-particle 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 locjpk fn.:i dfa.,-up fh b/7y0*yrw( rvation of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0),jtwdlpb 3:k::a v+-n tp-cik 3 and 4.0ci -vktdwjpnbalp 3t-::: +3k kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, ary8da1je4sos u ggv 6(.corj0 5e located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. Whj( 51r ejuosgd .sa y6ocvg408at is the location of the center of mass of the system?

  A 3.0-kg mass is positione iul hdg;2-k0xd at (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.lhk2;0 - gudix0-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 calcula/ 3c:/ujol m 6 x+)k+w bjfzs ,qo5usnpoq0ms;te the position of the CM of a whole leg including the foot when the leg is stretched straight oup/knmom/u+uf,s;j qo: w06oc 5q)j3+ sbxzs l t. Assume the person is 1.60 m tall.