What is the SI unit of ; .bpe rk,qp-oss0 4ywmomentum?

  When a cannon fires a cannonball, the cannon wiltm.k lba0m;.bve :k5kom.8 ou l recoil backward because the

  A freight car moves along a frictionless level railroad track at constant m74s hswd ;cx9 j7g7jfspeed. The car is open on top. A large load of cw4;sc7f 97jj7 xhdmg soal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideway- .k1tfw-eerus off a sled while sledding on frictionless ice. What happens to the vel--fk 1wet ue.rocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equal w4hq 3w:agr9t-l mc :uspeed against a wall. The ball bounces back with nearly the same speed with w:3wcmu94rl q -tgh w:ahich 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 would you representfq nzi),)bs z1f,bbd4 its kisbzbqb,i,z f)n4 d f)1netic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave i.a6)ll 4 qiobrt in the previous pitch, the magnitude of a.6oil 4rbl)q its momentum is

State Newton's second law in terj;sxhi +;leus;oq 5 auyxu)/0ms of momentum.

State the law of conservat: ja1b5(t8fp qa0,;a4xr2jp7abrnwr yxcu 6 xion of momentum.

  The area under the curve on a Force versus time (F vs. t) graph rel30cx( kav6jklkts0p1 n , q+upresents

  Which of the following is an accuratet,cs rx u.ncp uhl8;(4 statement?

  A small car meshes with a large truck in 3g ggp-sqz -x7a head-on collision. Which of the following statements concers--pgg q x3g7zning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the samec0taru m) 2pt8 height, and2am )tut 0p8cr 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 4 m/s, collides with a k;-s 6*ghbd-um; gtmtstationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experiencemg tut; -gm6bskh-;d *s the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linea7wu.6h3rn t xpr momentum

  A 3.0-kg object moves to the right at 4.2sdgi+mhh y8on6x 0 ipc v,f /16ypnc)nnt6(q0 m/s. It collides head-on with a 6.0-kg object mo/2 x6cg),f mnhtoh n+nsn i0ycp i6(vq d81p6yving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-ono7x2 u+pu+ suk:24 +;tvj jal*otls mh an 80-kg halfback tua joh;2t o+* s7+ull+:pu4jm xsvk2running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of the fo) 1xiep1: wrzc/r;ckh y8jpr :llowing statee:1p)c/wr yrp1h c; 8jrizkx:ments is true about kinetic energy?

  When is kinetic energy c d(n7ixdu tj5ghpm.,5 onserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while rw7;.8zyeq cttx/mi +the #5 ball moves away with the s +yt/z 7icmx8.;qrte wame velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a hea3)b9(2 eyym)bk, 1ymi.l kdra oju jh+vy exercise ball at rest, the beach ballh9layb2yr.eu mki )jd o3,)b 1+j(m ky's speed after the collision will be, approximately,

  A golf ball traveling 3.08 vbyute :o30c m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free ec obet380uv:y nvironment. 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 elastically with jn 5-m xy.l; hmffsq0(/et *.,yciowran identical ball at rest. What is the speed of the initially stopped ball after the c0-hn o.m; ylmry(e*,tf f 5sw/qjcix. ollision?

  A very heavy object moving with speed v coll/:gwz3 p f,wtwides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light oft :3wpwwg,z/ bject after the collision?

  A very light object moving withunh l(p 08tqi* speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collisio nhpit0ql*(8un is

  A red ball with a velocity of +3.0 m/s collidu/o uh/ i-dbav3u9 gm/6wjcn2es head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the veloci j uo3id u2mg ahw/-9uvnb/c/6ty of the yellow ball after the collision?

  A very heavy object moving with velocitn 8;2 nxu-+kizqojds:ar2jhh +/ .yk gy 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. What is the speed of the 2 k8zsh +j /k.djo:;rin xnq a-2gyu+hlight object after the collision?

  In an inelastic collision, if thev:- hdyjq96,izgfbqwo. k95 p momentum is conserved, then which of the following statements is true about kinetip vdyq95ow9i:.k -f q,6gjh zbc energy?

  Two objects collide and stick togetln7gg4nq r47yj:7zt ukiwb0 +her. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly d5.* .ycdmag /fg szc9inelastic*dyzsa/9.5fc .cm dgg 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 lauudu7h+)t+c v5 )ygk(kjk jg4rge object and sticks. Which object experiencesg 5tu)+vj)(4y7ukucdgh+ kk j the larger magnitude of momentum change?

  In a game of pool, the white.74q -jgkjhn8s lcr- y cue 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 massk/k0+r u vxdy:es, M and m. Which of the following statements is fals0xuy vd+/r:kke?

  Which of the followin3dx*c3nnd ) gmg ),+cmzsji,vg is a false statement?

  Tightrope walkers walk witqlhs6+sin zi+a ms.gi g f47e9 g-62kph a long flexible rod in order to

  A plane, flying horizot3jzy +,oo6zg ntally, releases a bomb, which explodes before hitting the grounjo6z+,o 3tgyzd. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was coy7sow,echelu(ll( e5 j79r1rz* h0xr mpletely i ,wour e (j(5ex*hye9lr1sh0l77 zrclnelastic 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 systl ;dn( v3-vzhx8 e.4slea a)ihem of particles.

  What is the momentum of a 2000-kg tr,mqwrzk + 16wquck traveling at 35 m/s?

  A 1200-kg ferryboat is moving sou1zr2 l nhk*cz2th at 20 m/s. What is the magnitude of its momentum?k 1zhlc* 2n2rz

  A ball of mass 0.10 kg is droppgh c6(xjf/l8t4c zc)v ed from a height of 12 m. Its momentum when it strikes (8cvh) 4c6glcjfx tz/the ground is

  Two identical 1500-kg cars are moving perpendyhf jt;2-lvei*2 *0xm,24 n avip fzqkwx3 m(iicular to each other. One moves with a speed of 25 m/s du3ke4hmqw2*t pvix-y xz,i2*; af(fi0m jl2n v e north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 w)f:68li o itvkg, traveling horizontally at 30 m/s, strikes a wall and rebou f6 :wi8ivl)otnds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ballhzk(w9y yz8ch*j98v l, initially moving at a speed of 12 m/s, is struck by a racket causing it to reboh9y* j( k yhcz8zv8l9wund 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) i2bkk iqvrq-dl g9ptn4 8.i l(-s 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 lir2g 8--q4dibk p.q ( ln9ktvspeed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and o ffmv qm2(2j7is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-2vfom72 j(f mqkg 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-on a large object nj2hd)a w,5 m;5ircxtat rest. The small object bounces straight back with a momentum of magnitude 4.0ndw;j2cr am5x5t)hi , 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 mar53o,jylcl10 mnk ca8qi/r41)jz vp sss), who is standing still, with open arms. As you collide, while holding each other, with whjr 41loz3c8 ynp vcla)51,jr0 qsm/kiat speed do you both move off together?

  A car of mass 1000 kg moves to tht3dayp(4g9 co e right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momen ay43c gotp9d(tum after the collision?

  A 1000-kg car traveliw3osmw3j x de,4 0ih,rng at 25 m/s runs into the rear of a stopped car that has a4 jwm,id ex3, rhsw3o0 mass of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast aloncvxr(ffc3n m 7 . y;,wsytj3,yzal/) kg a level track at a speed of 2.0 m/s. It coflc ,szayx v)kwt3 .73 rym,( fjn/yc;llides 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, ron4ilxf+q qv6 3lls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a dis qvx36fqi 4ln+tance 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 respectttqnn +d g i-q0..*l qb6*sa)( mpaxvc8nyrn 1 to the lo *.a0i*rn)v-sql6m cqg(ayx bd8t.nnpn1 t +q g). With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 ,f0zbsa z yl1kic 8m4(s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the 1f0(aizlskb zc8,4ymobject?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the o da3x +4jwy(knbject's change ay3 wkx(4jdn +of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, co .-npf eb;-kzx9 we2cullides with a brick wall and comes to rest in 0.20 s. What is the average force the car exx. eec f;29n w-zubkp-erts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ballji6ruprp:5.7 o fgmv3 mxu+8i 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 txr7g.pv +u35 j iroupf:mi68mhe magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the bal6 q82eb41vkq 1yfojwll 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 4y1eq 8qw12fo6 bljvk s, what is the magnitude of the average force exerted on the ball by the table top?

  A machine gun, of masm 1j2s4 pcp-sms 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds p-spm1s4c j2mper minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the doo2 pmiyb9zufc dj:8i( 7r of a burning building in order to knock the door down. This requires a forcu2bc yi(:z 89pd7 mfjie 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 ho/ ck4 fnkm2ku4/ p.jkvynh;6 g3k4lkerizontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force .ln4k y6hn 4 /ukf;/4 kcmgk3kpvjke2 does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40qf y.5 u/ov9u/nzx e/;c /jere m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engine.j q;//9uy5eufv n/e /roz xce exert?

  Two astronauts, of masses 60nub;3z:e tz,g7hv; u1+ qql ke kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astro 1 qz; hqet:;u+3zkugbn e,7vlnaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It j + k0xc nggve)61z/eqcollides in a perfectly elastic collision with a 6.0-kg object moving to the leftc)z0e +nv k /jx1eq6gg at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/sgqarj fy,xx ;:+( i)rs in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velociqyig s (rx:;jr)x f+,aty of the 0.10-kg object after collision?

  A 10.0-g bullet moving a70m,jvyik* 9 szo,wcht 300 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 yk9iv 7 owc0,sm ,zh*jof its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an a i93zk dz(ztyy cpis+ /-t,a5/r) zrvolpha-particle (which consists of 2 protons and 2 neutrons) moving aty 9 zzz3y /c,ist+o) (5ad/tzir vkr-p 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 p k() pw/ no7agz(6htxhead-on with a stationary ball of mass 100 g. The collision is elastihxt)own7p g/z(p 6ka(c. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the *4km,c*1ox mipi)gki east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The,**i k1 xi gk)4mimocp 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 qkaah-d *;uh0oxk( h8v(-ltx a 3.0 kg mass at rest. If the collisio al(k- 8t*x0uodh(hakh qv;-xn is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a smvsi 1sy-c-9ex3mcvca 4xx.-peed of 4.0 m/s collides head-on in a perfectly inelastic collision with a v-cv9m 4xxc3x-1ss. cmei a -ystationary 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 station wagon, wzr h2;noz :;nfq+v.b dho's n2:rf+zbohvzq;d ;.n mass is 2m. The bumpers lock together in this head-on inelastic collision. 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 itselfffcs7,+ x pg9e in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/blof,s9 pgefc+7 xck 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 wi3j/ c i5:mfx;ot ydf3jth 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 of;jm cti y3d/jf5:x3the speed of the cars after collision?

  A 1500-kg car traveling at 90.0b7hr /)wc,0nitfv sg; km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together afte )tnv0g;7hs ri/,fwbc r the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Ob:ft4nol a9r4yject A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perln:tof 49 r4yafectly 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 veh8m6*rqj* cv+k fn8xdlocity of 4.0 m/s. It exp+k*fvh 6mr*8n q8dx jclodes 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 fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin,rx )j 0qm)3d38stmjzuab53 p c and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass o t0 p 3d)jr5 mzbs8j)uacx3qm3n the x-axis?

  The center of mass of w)g/fwj *(0 vadg em,ha 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 location of the second mass of 3.0 d 0,wg/g(f hjm )wa*evkg?

  Three masses are positioned as follows: 3 ss2 mcuxs;.+ iqsu2 tf+*yca 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 tc+qf imax ss+3;2 s s2uy*cu.of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located a6bc.k6zsm0 itcuy ,tn(d v62 dt (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m),k6i(v,0 m c.6usc y 62nzbdttd respectively. 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 6 kmp5zh)xo.9aygg5e rz9z c61.0-kg mass is positioned at (12, 0). r96.m6ez5k go9 5) azzxphcyg What are the coordinates of a 4.0-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 calcula ,sfc+sy pof99te the position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is o9cpf+,ss yf91.60 m tall.