What is the SI unit of momen a-usoj4/djz9 tum?

  When a cannon fires a cannonball, the cannon will recoi(c4t(asmw 5- yst0 qqhl backward because the

  A freight car moves along a frictionless level railroad track at constan, 3on:b2ewespf4 xuy;t speed. The car is open on top. A large load of coal is suddenly dumped int, 3w2;:yeep b sf4unoxo the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictimz2oz b myy ,ga:k;g z922ajsppy6c-7 onless ice. What happegmyb;p7z m2 6ao2yc kz2s9z:g, py ja-ns to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equalurht9o xu g.;0f-pv k/ speed against a wall. The h.0ukpr9v- t xo/;gfu ball bounces back with nearly the same speed with which 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. H)p :9v:ym ( jkkxmgnq+ow would you represent its kinetic y+j:m: k(gx9pn q)kmv energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetgg,zllr . 9wscu,z n/( 3*xekuic energy you gave it in the previous pitch, the magnitude of its mom,c*/ggl u(zu.kz ,3x we9snlr entum is

State Newton's second law in terms )2o u7/*x4xcwmwjzhi of momentum.

State the law of conservation of momq5ga e,h hrxhi; jq, vlx)+:dvw; ;kc)entum.

  The area under the curve on a zwqn49:a vh*au4v/ nhForce versus time (F vs. t) graph represents

  Which of the following is an accura5lvre p +,m/gvte statement?

  A small car meshes with a large truck in a head-on col n5,-hg5znbnlze 02 iklision. Which of the following statements concerning the ghnl05,-kei b5 2 zznnmagnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blu*t21m:aom4b.o fqce ze) are dropped from the same height, and rebound off the floor. The red ball rebounds to a highom2 1e mtbfq*4: coa.zer 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 s nvv/wfh *. (f:pj8molpeed 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 jvnm.(w :fho*lvf8 p/ the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounc( pwwa;z.jv gap254pf e off each other. Linear momentum

  A 3.0-kg object moves to the right lbpv,, xh:eq/wlt7g* 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 ev7qtp x* /lghw:lb ,,is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfb2qbokou69;cx40 c mdsack s o cqcbm4k2 u6o9x;0drunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum isa db0jzs 1;d9l conserved, then which of the following statemezjl 0b;9d1d asnts is true about kinetic energy?

  When is kinetic energy m xf; ddm 01cozh70vr+conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 b6b /5 7,7d q gdx: mwrh9mkiz6t*mermxall moves away with the same velocity as the cue ball had originally. The type of co 6mhm 7wt ,grbq9x*6/mx ke rizmd5d7:llision is

  When a light beach ball rolling wic .elz1h-4ak hth a speed of 6.0 m/s collides with a heavy exercise ball at rest, the bece.l z1kh -4haach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a.22fvgegs fow):d xqwyt 1b+; head-on collision with a stationary bowling ball in a friction-free environment. If the colgbyqf2+x 2 dogw.tev :f );s1wlision 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 elaz.r5ipnd b51l stically with an identical ball at rest. What is the speed of the initially stopped ball5 .15lrinzbp d after the collision?

  A very heavy object moving withwfz wo0 zpe*cl:k59w9 speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy obj9pkwz0ewzlf59 w* oc: ect barely 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 heavyze)6w/dk j7 na object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heav ewzkdnja) 7/6y object after the collision is

  A red ball with a velocity;pw 5tfn: vwf4 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 isftwf4 wn5:p v; the velocity of the yellow ball after the collision?

  A very heavy object moving witr;/ o2.jrdai xh velocity v collides head-on with a very light object moving with velj;r/2a.d ixroocity -v. The collision 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 collision, if the momentum is conservedtawr) :xlp s0y11u p/ z8d-hjs, then which of the following statements is true about kinetic enljps y1t1)szpx8/ra:0 h-wduergy?

  Two objects collide and stick together. Kinetic es(5)nrw gmjjo93v vy 8nergy

  A 3.0-kg object moves to the right at 4.0 m/s. I l/k 84fjiajsu hm56j/t collides in a perfectly inelastic collision wii/ 6j8mju/j l54sfha kth 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 ob: e8p )if,vy5 s9blrefject experiences the larger magnitude of momentum chang sifv:)89er bl,fyep5e?

  In a game of pool, the whimu*f2ba+is3 d te 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 foll, 40g otbob m4hn9i3llowing statements is falsh4 03i mt4ng9lo olb,be?

  Which of the following is a false stai8d5ls+x yeq 4ee+ g9jtement?

  Tightrope walkers walk with a long flexible rod su7 jts0k-k4vmaow*t+k;vorstz:00 in order to

  A plane, flying horizontallvcl150 .0g56( c w+ijjquklpbo6h+bb ha(r p wy, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, thlhulq6g0 vk5 wap(boi (b6+p 5whc1 brj0.c +je center of mass of the bomb fragments, just after the explosion

  Two cars collide head-o fwvmbw3xuq974 ue5z*1mab ;ln on a level friction-free road. The collision was completely inelastic and both cars quickly came to rest during the colq a4u zm *ulvwm79w5ebx31f;blision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of wht)wm 6- -gr7s0lvhid5p+i c particles.

  What is the momentum of a 2000-kg truck traveling at 35 m/s?1 wv )vkx9 iyk0c.yz8qq(;;lbgpi m )c

  A 1200-kg ferryboat is moving south at 20p-0 f3ngh kfr0 m/s. What is the magnitude of its moment3-fn kp0f0rgh um?

  A ball of mass 0.10 kg is dropped from a height o3fz .c2u r.stbf 12 m. Its momentum when it strikes tfcu.t3b.s r2z he ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves witr6*i9m(gsstw zr ev6,h a speed of 25 m/s due north and the other moves at 15 m/s due east. Wha i*s mts z6vrw6g9(,ert is the total momentum of the system?

  A handball of mass 0.10 kr fr(5zymzk)6.pg+e 4 e o bz2qn)pk6jg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum oz p4qp z z6k ()+6.e2 orrm)jyen5fbkgf the ball?

  A 0.060-kg tennis ball, initially moving d ab,vd*t2x.t,bam7 u at a speed of 12 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 change in momentum of a adxvt7db2u.tb*,, m the ball?

  A 50-kg pitching machine (excluding the baseball) is placed8tnf8 z qi9gq1 on a frozen pond. The machine fires a 0.40-kg8iq98z n1g qtf 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-ui;n+x 5lzs y.walking outside the space capsule and is stationary when the tether line breaks. As a means of return+l ; sz.5yxiuning 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 kgnf+t2f+ 2ijku 6vf 3ulm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude+26n2f+it3fku fujlv 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 (/: 6 )x s(jdvt,4lofcnpgoc w140-kg mass), who is standing still, with open arms. As you collide, while holding each other, wic:sg d,xo6(wvjo1n)4t/ lcpfth what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight road y3d xq*fp.m )oat a speed of 6.0 m/s. It collides dire yf* 3mx).qdopctly 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 the rear of a stop:l1ipa7w3sj,bpr l o 1ped car that has a mass of r,lp :w o7b1sli3aj 1p1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, v8y5br y v1ie.)wk:f;5hkmgjmass 15,000 kg, is allowed to coast along a level track abh5 .;yk)ke:vwr jyf8m g 1vi5t 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 cars after coupling?

  A railroad car, of mass 200 k5m7,o 44:cm/hwb/zo c rkdx vig, rolls with negligible friction on a horizontal 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 mbmd:kzr 54iw/c7ov, cx4h/mooving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0 i7dt l1abo6 66hv)1hr/ewja*i+gmwn.80 m/s (with respect to the log). With what speed does the log move, with respea1)odahg6wil/* h t1 6n+jvi76erwb mct to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increasespvnon4vv7*gx:a vj 06 to 15 N and acts for 4vvv*0axnojv7gn :p6 one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s onuza y uaz33- i63y8aps a 6.0-kg object. What is the object's change of3az63 yua 8-zapyui 3s velocity?

  A 2000-kg car, traveling to the right at 30 m/s, c( pdca+fi odp(m:ix9. ollides with a brick wall and comes to rest in 0.20 s. What is the averag(dp( .i+9fa:idxop mc e force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit tv7+ge wx8: dcug,o gw*i,7v2; matbo dhe 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 bat exerte;:twiogxv u c b+7md,w2g8*vd,7oe ag d?

  A 0.10-kg ball is drdw6tu vbinzbu5,77 6 w*mp/oropped onto a table top. The speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, resb*n7twbdvo uz 67/mw, 5u6rp ipectively. 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 velocedifyn 06 r83fi42a4lkx . lio 8gac/bity of 750 m/s, at the rate of 300 rounds per minute 8aflo 6.c i3ln f84xdi2b4g/kyea0ri. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock the d3fen-omf+iglw5e; 0hoor down. This requires a force of 1000 N. If the hose delive 35n-w lefg; fe+ioh0mrs 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 q3 5z;8iqaxg tthe rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what aveia;3 5q xg8ztqrage force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, ach ec-hf3+xhva ,ieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engine exert? hxae-+,hc3 fv

  Two astronauts, of masses 60 kg and 80 kg, are initially kamc 5tu tj(+9sjf1c: at rest in outer space. They push each other apart. What is their separation(u1ccma5jjf :st+ tk9 after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right wilve*lr14k toe3. (x8i gtx n6;aaui f/th 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 totanxae(a48eflitx3/v* ;l r.u1 tk6go il kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s ine a1+himon h yzl/(t33 the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final vhomz/ (+y3e3iln ta1 helocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. Tc.zesrl1)8:jbi8neqc .q.cr he bullet emerges (the bullet does not geilc ejb rn8es18c:.c.zq r).qt 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, is s7eypst u/, gy(g6 603zpzdd ritruck head-on by 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 after the collegp y,t6z0dzypsd( rug 37/i6ision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationar;gx tbfr63-*bh j4 irdy ball of mass 100 g. The collision ixg;4 -*t 6hi3djrbbrf s elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a 1oj-c ixv 91zjspeed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly el1x1 9z ojjicv-astic.
(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 mp:soi7 fu .vr9c9v *lr/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of thevu.lcr pr:s9*i o79f v masses after the collision?

  A 2.0-kg mass moving to th;je zm:29 tkuce east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?2;tz:m kuje 9c

  A car of mass m, traveling with a velo,+(v. j+ k;dmqt y4aunov l wdpz40bwg,f-,utcity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastif-ow kvt,+b4+ujaz .v y;gqln,tumwpd( 0 ,4dc collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a xv+w mac7m1m6vertical direction buries itself in a 2.4-kg b6m+vc1ma wm 7xlock 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-kqdw f-atr)er h af37:43e6*ayvqqh ,pg car traveling 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 ) 4t, f-qfaa*v: rp7eew6ay3 drhqh3qafter collision?

  A 1500-kg car traveling at 90.0 m l0 ag+yippze.7w)y7 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision y+mg i0z7wea7lppy) .. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves efg,o12ku q;bjrhn 7f -ast with a momentum of 24 kg27quo; hjkgf1f, rb -nm/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 kg, is movin1p zc h6nt z-navwj lt,04ue+/g toward the North 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 kg. What is the velocity of the third fragment? (Neglect aizzujt+4vl0wtn h p6 /a,c -ne1r friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = + 21.0 m. Whw.l(quwhf)1j ere is the center .q)(uwfw 1hjl of mass on the x-axis?

  The center of mass of a two-particle s y.(h;;7g45 v* upskpkfn j2kgdq6ajnystem is at the origin. One particle is located at (3.0 m, 0) and has a mk2 4d*f;p ;p5y6kv7sgq j(.junh kna gass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as 8nb10efh8m8lysefcw omiipi- ;01c +follows: 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 of t8c b;fl8f0ich8p-m+yo0 11ws nmie iehe center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (zdztn*yeye)y /) 0 :qt2oa /iq ygf/(ic 31opq1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of the syst p://20yee qyzqfqcyi (d/)gn3t)o*otia 1yzem?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is pos) j nykxsnq6lj6+g,6 wda2t5aqp9 ap,itioned at (12, 0). What are the coordinates of a 4.0-kg masqydtap6)qnjp2l9 ,s w5 6,ka jx6n +gas 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 tph i0/qiar.u q/w s -bv: ia28qd2vix2he position of the CM of a whole leg including the foot when the leg is stretched stra2ur2i:d-q/ iqiia0a .sp bq8/vw 2vhxight out. Assume the person is 1.60 m tall.