What is the SI unit of mome;8 cm5cpgv;mxntum?

  When a cannon fires a cannonball, the cannon will recoil backward because 4 mfgum9q9 jiwysz j/);:rbs1the

  A freight car moves along a frictionless level railroad track azhcj3*8i7 u cc-nvyivz; r v09t constant speed. The car iv;zv ru0i83h-cinvy97ccz*js open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled whileh wx6+8.1p5udlo lyml sledding on frictionless ice. What happens to the velocity of t+8mhlu. w oy 5lpx6d1lhe sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equas m 6l/y5mcn)bl speed against a wall. The ball bounces back with nearly s/5cm bl6 mn)ythe 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. How would y nrqv1n/r0sa -ou represent its kinetic energy in terms of these twnqr srv0a /-n1o quantities?

  If you pitch a baseball with twice the kinetic energy e8smkpx( e) k,ok p6c0you gave it in the previous pitch, the magnitude of itks coee,k) xppmk(0 86s momentum is

State Newton's second law q rfr/jze8b*( qj*l5cuzv 8 g6in terms of momentum.

State the law of conservation of momentu8ecq8 x(8 a0wgr; aa u9tb.yh7.gnyrrm.

  The area under the curve o dd *awyx(5r2ln a Force versus time (F vs. t) graph represents

  Which of the following is an accurateb)p+v 5,2pwfj5p2fea d gtcs4 statement?

  A small car meshes with a large truck in a head-on collision. Which of thej(2 e5up k(ryc following statements concerning the magnitude of the ave5yec 2(rj(pkurage collision force is correct?

  Two equal mass balls (one red and the ot+mk658+ gyxyaw7 b9cgj o9r uwher blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected ugw+cb7j 8m9 okwyxr5yg96a+ 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 sta4 (1ql6 sod(uv rg1(ksoqt-36h elerxtionary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves ver l1qxr- 6t6dv4s(1l(geq(ko3u esohry slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear my+ te3x) p wp1v0/gh kilj2*wzmc3l *vomentum

  A 3.0-kg object moves to the right at 4.0 m/s (ez tn d;5yqi9ffmk2*. It collides head-on with a 6.0-kg f*e59 f(knyt2zqmi d;object moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0cjz0 av 3b/w+i m/s tackles head-on an 80-kg halfback0jiw3z+v a/cb running
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 tjb o;gj14m9mf he following statements is true about kineticj fo4j;bgmm 91 energy?

  When is kinetic energy con d 0zt0.xddk 6ilk(r)xserved?

  In a game of pool, the white cue bal7j:h5dr6g5 wmjz i/ux l hits the #5 ball and stops, while the #5 ball moves away with the samd:jj z/gwi hr mx6u575e 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 azc/9uqpkq btg5p if 58q-15lz heavy exercise ball at rest, thq5 55zp ifg9t 1ukbqcq/pz8-le beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.05j unhiu5n3 :h m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speedjni35n5: u uhh of the golf ball immediately after the collision is

  A rubber ball with a yl5l:r9 sk3 hcrz5qlpe*lz*4)jexu6speed of 5.0 m/s collides head-on elastically with an identical ball at rest. What is)e*xllzue hz5q 46*l :c3 slry95p jkr the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v col qn /fg82hos++d3n/ de2wma mylides head-on with a very light object at rest. The collision is elastic, and there is no friction. The oa+enm2f8g3h+dd ynsq//mw2 heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v colli8-tuqzhvt2,y 4e9t hh des head-on with a very heavy object at rest, in a frictionless environmen ey2u8,q zhhvt9t -t4ht. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with kyj4-*tm-t,apyqz;04i h yvzq aj 8)c a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the va*8 j)y4-p;ia jt hv-ytq m,zzy04ckqelocity of the yellow ball after the collision?

  A very heavy object moving with veloci,uf6to/:p5c)xqsgmt f .9icj ty v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heamf):./6ox ,gqc utisp5j 9 ftcvy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collisivv5 qu)1b(9am tvc9acon, if the momentum is conserved, then which of the following statements is true about kinetic enebvc5v9tumq avc 9a 1()rgy?

  Two objects collide and stick togethhwzo w r(4;fp (jt0(muer. Kinetic energy

  A 3.0-kg object moves to the ri b4tc/dwce gy +8y1a7xght at 4.0 m/s. It collides in a perfectly inelastic collision withy+gt dcy/4x bea8c1w7 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 collide7)kg evi owls*-:*2ff2 ps oezs with a large object and sticks. Which object experiences the larger magneklg2w) s2z*vfipf es* oo- :7itude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected atp cm,,wr a**bm 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 and2z1b nen(fa3c m. Which of the following statements is false?32fzc ba 1(enn

  Which of the following is a false statemrc i/md7a) ax*0ny9wp,6 pein y;a gj-ent?

  Tightrope walkers walk with a long f ix(r:fkzk;: flexible rod in order to

  A plane, flying horizontallyjwp gm01vd om9lb.lli uy3/ ,0, releases a bomb, which explodes before hitting the ground. Neglectingo90iypvb wd0/g. mulll1m3 ,j air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level fris- xg--bwtnn e8mp;n8w x sm8o(cx16jction-free road. The collision was completely inelastic and both cars quickly came to rest dumwb-p6xj(s-nw;gxscn mto-8ne8 x1 8ring the collision. What is true about the velocity of this system's center of mass?

State Newton's second law fo/s8 cg .2a qovsqc+j*jr a system of particles.

  What is the momentum of ap/inwp kyr ui37q *)f8 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitucojy0 q. f5e6rde of its momentoe5q0y r j6cf.um?

  A ball of mass 0.10 kg is dropped from a height of 12wh i3i7dw.l sllyx7acg h2)19 m. Its momentum when it stri 3y gic9.w7)7lx1lawdhlish2kes the ground is

  Two identical 1500-kg cars are moving perpendicular to eachj z-f+-bvdx e* other. One moves with a speed of 25 m/ d-f bvx-ze*j+s due 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 kg, traveling(z12if +a nibb horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is thf+1i(n2az bbie change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, i2ujhzoq ,(( zhs struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is th h(2hu(q o,jzze change in momentum of the ball?

  A 50-kg pitching machine (excluding tht9yhi y8jy60fvz8 3bnj-k lk .e baseball) is 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 rec.ty0 j-hiyn8 zy8jk9k vbf6l3oil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space- ax6zwg9 tv8/i/0 axvowalking outside the space capsule 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 capsule. At what speed to/axzwvg80av6 9/ix does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s qmj rr6 z :; dn,i:sc,e/bj0usapproaches head-on a large object at rest. The smm: ns0ejr zirq u6c:,; dsjb,/all object 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 u6 znzns b02j1tlg/ p/vng+0c4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, wb0 g /2ucg/zs 1z0 6+njtnpnvlhile 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, straight road 0zetm9cjeqqx03 aq cn7hfp ;e/a7mol88 6:xvat a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the l je8x0qea:fx 0 6ez3c7mahqov8cn/;9 7tpqmcollision?

  A 1000-kg car traveling at 25-q)oovd*2w ir m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars aftoi *dr)-2o wqver the collision?

  A railroad freight car, mass 15,000 kn71tw: c pih;vg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,7inw ht 1pc;v: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, rolls with negligible fricu-8f(cysxfjpf)b z6l d:8; wr tion on a horizontal track with a speed of 10 m/szy:pljc)s8fwffxrb-d ; 8 u(6 . 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 the083zpyz m8w nb(o- xwn rate of 0.80 m/s (with respect to the log). With what speed-xw30wpynz88bz m (on does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an objec tv:svn7p;o6 ne3-rx u/ly3 ytt. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces tot3p: l yot yu x;s/r3nvn-76ev the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. ws5)cn;m 4xny5 b(p w6psc8 hp What is the object's chacpcb(spw m5p54 ;snxyn w68h) nge of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall andofo +ucx(,tcdn 1dbo(x 76 y:b comes to rest in 0.20 s. What is the average force the car exerts oy1d+b,uf:to b (6 cnoxxod7(c n the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ballh r h6iwb0e*-me;pecqxqd : d36 fy(z1 back along the same 3(pzebhed er1 iy6:;-qdmxwqc f6h *0path, 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 dropped3s*gmeg; f)s)j l fjh6 onto a table top. The speeds of the ball right before and righsjlf 3s;m)j h )6*ggeft 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 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-g6t5 nz4a/wgm)o:z jlmram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the a j6)mlmtn/o45 agw:zzverage force exerted on the machine gun mount?

  A fire hose is turned on the+j4h kip s bs+9g7iflg.d+vg-e5w0a5g w o8py 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 the minimum velocity of the stream needed, ygskw g+es+dlgv4+wp5 8 f9p0bjg -hia7 5io.assuming the water doesn't bounce back?

  Water runs out of a plh alni)9herfuk/e*6k)u )f h+3v7 ohorizontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to tku3 iv)h+ne epflh/*lo7k 9)f 6)hua rhe 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, z b fq k5lc:*mvca0g.+achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust folqf 5vcbazm :. ck0*+grce does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest w +y5y-wf6 -eyp7wuvp in outer space. They push eac wyf-y7 56p-uve+ywwph other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a fi/1uz)be)wj speed of 2.0 m/s. It collides in a perfectly elasu/bz)je1w fi)tic collision with a 6.0-kg object moving to the left 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/s in the +x direction 5k20c 3 dw*qfy*b ovpjmakes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after b20*ywvdop53 kqf cj* collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg blflw()yl.a *yyb zv( /v 68knmw7 e+djjock 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 thnkf lm7 ly6(ejd+by ).*awv/j(wyv8ze block right after the collision?

  A proton, of mass m, at rest, is s)mqan*trh qe w):nx, 9truck 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 afternh))q* : exqa mnwtr,9 the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/sju0m gp(cfqp 5lg2. t8 collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each balg j.ql0utm(p5 fgp8 c2l immediately after the collision?

A ball of mass 400 g moving toward thec mp ;jxix*;1xqfw.o- east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfj f xi1o ;p.*wx-c;qxmectly 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.fgkx9fs,)r o*u5w (atbc; z y; It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses afs t9(f ,);agfco;xwy uzbk*5 rter the collision?

  A 2.0-kg mass moving to thzhty h+sf, 1 5h1kqw+le east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a 1ht 5wk+slhq+,f1zyh stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikiq3* rxw 0ao:ge*wphk47w0 jg es 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 energg:0wq0jh7agw* rk3 x p*oiew4y is lost in this collision?

A 15-g bullet traveling+auof /8 ,xupt7xx9o h 213 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directl7p+u x9ho,xo8t/ xfau 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 east collides with a 3000-kg car travelingfmoc qy4: o3ni)5w ok; at 60.0 km/h south. The two cars stick to iowf4o: 35kyq on;c)mgether after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car travelinganp3essr*x c05r xv71 at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.7v3ex nxrs* pr105s ca) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object c, 6*q k4cn,lbcl(nq4x5offqhp / )beA moves east with a momentum ofoxkef 65 )lcc,lbq *4fcbh(,/qp4qnn 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 masr y6m bbx+4 6h1p6flnavig)0 ts 10 kg, is moving 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 oftgv6p nfh+mb4)0rl 6 y bx6i1a 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 10.3rfzzabpd+qjg /n/ 34v 6(syt0-kg mass sits at x = + 21.0 m. Where is the center of3( v/d +f6ayzgs3/ tzpbrnqj 4 mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle ;.yl:-z0x0lc6fm h vl5ypmng is located at (3.0 m, 0) and has a mass of 2.0 kg. What is thv-m6xp;h0 yz5cnfg :0l .lm lye location of the second mass of 3.0 kg?

  Three masses are positioned g*2oq pnc q-iey3qa514ve;mc as 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 the center ofcq ;e p1n4o3yigvmq -qe5*2ac mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0lfqgu, *rsi 6:1f jmk gcxnsx34*8r)c m), and (2.0 m, -2.0 m)l,r3s:r)u g8 6xf m*ic* fsjx41qkngc, 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 1.0-kg mass is position9d4 krm)04.yym orkc xed at (12, 0). What are the coordinates of a 4.0-kg mass which will result xkro.49)dky ymr 04cm 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/fen5:4 cqp sv leg including the foot when the leg is sv4 5: /fnqcepstretched straight out. Assume the person is 1.60 m tall.