What is the SI unit of vgv2x-22xecs momentum?

  When a cannon fires a cannonball, the)zq5et5g7k4v , iyzrw cannon will recoil backward because the

  A freight car moves along a frictionless): mhv1r z/ikz level railroad track at constant speed. The car is open on top. A large z/iz v 1rhk)m: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. What nyvf33z24syyg , t9uk happens tvzst2fyun43g9 yy3k ,o the velocity of the sled?

  A rubber ball and a lump of: cps*xq.8,tz kjo v/tt7j+wv 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. The putty sticks to the wall. Which object.j:w7/stvtvjpzko*xq ,c t 8+s experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How wr6bqob sph7 fh0t-*q :ould you represent its kinetic energy in term- ft7bos6qphq0: h*r bs of these two quantities?

  If you pitch a baseball with twice the kinetic energj,:o mqppl7 0vy you gave it in the previous pitch, the magnitude of its momepp:vmjo07,ql ntum is

State Newton's second law in terms of momentt8 yj 40ilz;b83xyyap um.

State the law of cons1luait 2:, jmgdhb tlh0,f4y0;u h6l servation of momentum.

  The area under the curve on a Force versuh 420bwi /wve,dxa 4zxs time (F vs. t) graph represents

  Which of the following is an accurate statement0 /nnj prew;n-?

  A small car meshes with a large truck in a headk k hilqa9b*2:-on collision. Which of the following statements concerning the qk:k9i h2lab* magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dr (o l9bg rxvvf6iz-na9hm6))iopped from the same height, and rebound off the floor. The red ball vx66hzi) lb(onim9 )-gr a9fvrebounds 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/y l(b/* a3rwag 9cilrs m2d6;e99p pqws, collides with a stationary bowling ball. 9ba ;ly/q3c2s6 99rpw*gir eadp lw (mThe 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?

  Two objects collide and bxciv( (8x+8knex0de bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s 81d qi9z lh-d*j:dxze4(e2;lhdbdc q. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is coqc1 dzd9 e;qzb(d i84d*d-e2l:hj h xlrrect?

  A 100-kg football linh3v z8: c1dxrnebacker moving at 2.0 m/s tackles head-on an 80-kg halfback runnnvd:8rzxhc 13 ing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the movgco98sz.7m g 8mwe x8mentum is conserved, then which of the following statements is true abog wo7.8zvg mmecs889xut kinetic energy?

  When is kinetic energy conserved6+g h v5ga:peq5hwc1b?

  In a game of pool, thezb0 9ctfzlco83x*1 mke4vsy3 white cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball h3*vcb yc1 zt fm8lsx93k40ez oad originally. The type of collision is

  When a light beach bal), 20 0dax)tisiz eyztl rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the be)z)iaz 0xytd2i0s ,etach 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 collision withwf*w( d4 -9++wchryljor lgq*7p /h31isbgg t a stationary bowling ball in a friction-fgbgdwrh9*wl+ps 13qo(t/*-wr i7 jlc+y4 fhgree environment. 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 anx-p;8t; osr)bk+ rdbe+jznc)h hl(/r identical ball at rest. What is the speed of the initially stopped ball afteh;8pr /(bkc-rlzn t)b) o+h+drje ;sxr the collision?

  A very heavy object moving with speed v collides head-on with a very light ua 7*ux3jj4hst.xx w3object at rest. The collision is elastic, and there is no frictijux 3sh tx4u.a7xjw3*on. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with spz0tb(ip*k.q 6 .jr4fu rw l3lweed 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 co0izu(w* p6kl.3wjltr.b frq 4 llision is

  A red ball with a velocity of +3.0 m/s collides head-on with oeonv): i+kf0bl47 mt a yellow ball of equal mass moving with a velocity of bi t4m) o n7efv:lok0+-2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocivc ws 6mv s92 14pcwwju4ll3;ety 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 d9 w4;4w muc6ljsvevw23 ps1lcown. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, thpj9my i2c 0q bxmg4u2 u:.8khben which of the following statements is true about kinetic enexk49hb.: 0u2b c8gipmjq2uy mrgy?

  Two objects collide and stick togetheh wpqud2pq ,9o7 zgx98r. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfect r 8n8 2t8ypyudzio/h*7ak bb9ly inelastici9 /han udz8 7b8yo8pt2y* kbr 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 expfl4ch4fego 9i8 fnh+0 9 r-mngeriences the larger g9 flf4fh84rhic9go +en0n m-magnitude of momentum change?

  In a game of pool, the whij )umwd+zt+-g ap;q;jrr-xx0y e 2(orte 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 masses, M and m. Which of the following statementdfq+uxx(u.sv. )k z s-s is fals (-sd+u xf uv.szx.qk)e?

  Which of the followi)n8gawu nm 7.fng is a false statement?

  Tightrope walkers walk ww (jpnji: u y(ogd5c4-ith a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explode;4 tcen f.kr:ws before hitting the ground. Neglectic 4ftn k:w;re.ng 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 wyk 3-cnvrl/l 8as completely inelacl3l ry8 v/nk-stic 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 secon9s4fnmh j0p0-k tk /z:h5oelmd law for a system of particles.

  What is the momentum ofat l72 x47 jqjr1boa3j a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magni*g) 3kedo8d,tudzy /f a-za,ptude of its momen )dga dae-oz fu8zdpkyt,,*3 /tum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momeskp:i n.y87v gr4o w+tntum when it strikes the groug4.r+7vsn k wtoip8: ynd is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves witf 7 dq:jx v2;n)rf91ps(ao octh a speed of 25 m/s due north and the1oodftncv2 :7f(r;a) qxj ps9 other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, fol4:r5;wm /n)dtah ry*h 0lwtraveling horizontally at 30 m/s, strikes a wall and rebl5ta* )dylhr4;nr ww0 :/fhomounds at 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 m/s, is struck by al8 fh i7p;fb8t racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the bf8 ; 8hptlbfi7all?

  A 50-kg pitching machine (excludings -6o63 snoppm the baseball) is placed on a frozen pond. The mac 6mpo6 os-n3pshine fires a 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-walking outside the space capsul2 fv1sqkbqm pig8)kq 11l 7l+fe and is stationary 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 cafv)1l8b sqkgm fip1 1+7qlq2 kpsule. 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 at .c2s2jsi fcd rz6a3tr97+no q rest. The small object bounces straight back with a momenrjzsccfr 9dt3 6oas2+n27 qi .tum 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 frien/u 1.tpq yu(ai7hhl.wd (40-kg mass), who is standing still, with open arms. As you collide,uhl /.apuhq ti1(y7.w 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, str4ijrftpx0g) -n*n+y yei0k0w aight road at a speed of 6. prnxk *yeg ntwiy-f+)04j0i00 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into tfc d0-1zjwkj14 ko :v z24bqdbhe rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after :-wkqd40 o2 1jzfj4k1b zcd bvthe collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a l+ qtrx y )exv kmmd cw(/l,u0.4o;7jbvevel 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 cw7x/dyuk v, jr4lbvt ; ceq+0()omx m.ars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible m r/m6eobg3 fb0/df ip)cy,fu ,/akz;friction on a horizontal track with a speed u)f 3yo;//ge /6bimr 0fbcaz,f m ,dpkof 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 happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with respectpm/n(ctc ) 9jr*ywz q* to the log). With what speed donq m /* 9(y)p*wtzjcrces the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suzlir)ad)4q8)lzac5 4qm7 :- qvodb xfap/sj9ddenly increases to 15 N andqlmar a-5 :9j 8dqzas 7zqx/) l44f)dbcv)iop acts for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts.hbjjig;zbq 4p1: 8a t for 2.0 s on a 6.0-kg object. What is the object's change of velocitb;t.8q ji h 4gbj1:zpay?

  A 2000-kg car, traveling to 4k)fav:y jly/wqko5;zov6+zthe right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. Whaa/f4y6 )y:kovokz5;qjl zwv +t 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 bnjyb1ug x-q7b+9fdq2 all back along the sam9fubb1j7d +g2 q-qynxe 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 exerted?

  A 0.10-kg ball is dropped onto a tabt1v (q/c2l qdvle top. The speeds of the ball right before and right after hitting the table top are 5.0 m/s aq(vvqt2 /dc1l nd 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 bullets, with a muzzle velocity .0dtzsba j2.5qs2 n kaap; ix-mv8qo.of 750 m/s, at the rate of 300 rq ds2xa t8s.- 50.o azmp2j.;naivqbkounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning buildinmvx*imbw qn; g54verb 19 +7kxg in order to knock the door down. Thisv* i1w mex9m7g bxbqvnr;+5k4 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 minute. It +qroz5jklzmuv*r lk ;b n:v:(:;om8 7yj -hikfalls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the grounryl5;;bvk-ln(*jqm z::i 87o k:hrov kuz+mj d?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, wheviw+dqo 35a*t;dt): hke qn9g n fired straight up. What average thrust foh+aq*qgvw5 t)edd3n:it o;9 krce does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initiallyq.hrz6 5ec3xk at rest in outer space. They push each other apart. What is their separation after te5z. xkrc6hq 3he lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.rqm:,ve+1bld 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. 1rm,qebl +:dvWhat is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of o,fo v.1l 83 d6egpov/t7nqqf0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kgt ed67,ql vo p/o3vnogff81q. object initially 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 is fired in(eiktyc 5okztk f.s(r+ c)549f:j xfwto 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 block right after thfckzto45yk (s5t( f r cfe+kwi9j:.x)e collision?

  A proton, of mass m, at rest, is struck head-on byowds+,wzs;n1 (pcol8 an alpha-particle (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 acnpo1o s;w sd8 ,+wzl(fter the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationasi0 *vm*qrsw 8ll wd.:ry ball of mass 100 g. The collision is e*qls*.d w0irvm8 :sw llastic. 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/s collides heg:gfj7,eexv6de, y0rd+kw ; yad-on with a 200 g ball sy+ y; ee0df,rwge:xv76kj,dgitting 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. It collides head-on with a 3.0 kk.b4 jocgw; ,bg mass at rest. If the collision is perfectly inelas,bobw.4k; cjg tic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed owhu5x0tv iwb mw1o 8 ve;4kr,3f 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How muchw,r8ketxh wvmvu;ob 0i1w 354 kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, stfv -sta/e9 5 0 x3khgpe5ax*yarikes a parked station wagon, who's mass is 2m. Th-h/ 0*kxpyt3 feesaagv95a 5x e 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 itself in jtd ( hb:f l9l .lc3;po1qzh*f0nr3sla 2.4-kg block of wood a rest directly above it. As a result, ;fd 3lohc sljql0: n (trz.1b9fp3lh*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 t +3.6ff ynppuoraveling at p3.uyf+ nf p6o60.0 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 traveling at 90.0 km/h east collides with a 30/r0r jq6k.av- w1cknd 00-kg car traveling 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 the0vk qrw/-1kn6c .rdaj cars after collision?

  Two objects move on a level frictionless surface. Object A moves east witg 2l.w+ +nwpkth a momt k.wlw +pn2g+entum 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?

  A small bomb, of mass 10 m,48ne.o lt+vrwx alp - jv1m;kg, is moving toward the North with a velocity of 4.0 m/s. It explodes into three fragments: a emlv- xra.4ov+ t,;1 jw 8nplm5.0-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, nfnig ey: zz6h5cy8 s i.0u)ncj/+cp. and a 10.0-kg mass sits at x = + 21.0 m. Where is the ceczsh) znf5u. p i+jcicy :8y6n/0.negnter of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle i zdz) ;qug 7u75skvrg0s located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second qk);r0d gg75suuv zz7mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0),7zn* sy(*igb6-7 8 uzl mejkkl v: /qxz8e2gqg 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Detegxgk6qv/2*nlu(zzg y8q 8s-i7z j:le7b *mk ermine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0(5vzcrsu +z- u m, 1.0 m), and (2.0 m, -2.0 m), respective vcz5+ruz( -usly. 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 --8 dc/b wggtk79*1tede6mjlbzj lj5at (12, 0). What are the coordinatewdbezl1697t5j e ldg- 8t -b ck/jmgj*s 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 calculate the position of the CM of a whole 2, 6bdq) 9+uryukgzq/mrdc8k leg including the foot when th/k ,6dk92guu 8m cqr y+brd)qze leg is stretched straight out. Assume the person is 1.60 m tall.