What is the SI unit of mo1,dtrnlo ctihjl;.cd8 h2b p1 ln(y8.mentum?

  When a cannon fires a cannonball, the cannon willp 4x7oc xvi7p, recoil backward because the

  A freight car moves along3 k8gie2sw+vb 82 iot 5gb+/se6ciwjk a frictionless level railroad track at constant speed. The car is open on top. A large load of coal gg8k b6iew8 iov52bt3+/ jc2kwseis +is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding at.u rz8ul8bm- +w-pm on frictionless ice. What happens to the velocity of 8-pwmmltz + -aur8.ubthe sled?

  A rubber ball and a lump of putty have d,iwm2 n2.tmmixl:.m m :6c(fmtq8oa equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the s(x8tm6 m a,t n.lq2:m m wimdfo2i:m.came speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is mov/1-8,nu4z /j5p 0 ci k b:pj vnhfuvqpc4x/lzxing with a momentum p. How would you represent its kinetic energy in terms of qxvzn5pk uz1c//8u ,f jlj n-0v:4 hxi4ppb/cthese two quantities?

  If you pitch a baseball with twice the0 (ziqf (azbe:dr,;* bgnyda 7 kinetic energy you gave it in the previous pitch, the magnit*b;inyrgazzd q afe( :70 d(b,ude of its momentum is

State Newton's second law in terms ; 9w3qm5tgy hq-hu9t uof momentum.

State the law of conservcp52:e )qw9y/ d vbr9hsoe+veation of momentum.

  The area under the curve on a Force versus time (F vs. t) graph representstbfaw lx *4ai. b;:pi-rt7dy1

  Which of the following is an accurate staes/ 63ewro im;tement?

  A small car meshes wit)ofq lf ynu9b;/xe1d; h a large truck in a head-on collision. Which of the following statements concerning the magnitude of the average collision force is corf;q lxn/ o)9eb1 fu;ydrect?

  Two equal mass balls (one red and the o 2aro.xpwjch xwn;2o ))0sztl(qx )8pther blue) are dropped from the same height, and rebound off the floor. The red balltpjw)n0wp )) x;rxo228q(c .osz ahxl 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-l:x) xpqdd0 n2p 7+dowukkc kc;p 5i4/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:c c +7np 2idl;p)kdk okq4-5d xwxp0u magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linn9ur x7b)te+ tear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It colj6f7l exz1pjv+sv c1*lides head-on with a 6.0-kg object moving cj7*x+jple6vvf sz11 to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 j:- nj 2/19rtbr7rltujm-om h m/s tackles head-on an 80-kg halfback -n r9m:lmjjj7 r-t1 /o2u htbrrunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then +z.sdo2m n0z kwhich of the following stamz2z ds+. nk0otements is true about kinetic energy?

  When is kinetic energy conserved: y/xviww 4;pk?

  In a game of pool, t-9+eo1j jxe kfhe white cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocit+1xe j k-oj9fey as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 +djx b-zq.tnz2h 7 ht*m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision willhdttjx-7+ *bn2z q.zh be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on coi3p iaza+ v0s:llision with a stationary bowling ball in a friction-free environment. If the collision is a: iav zis0+3palmost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s col 6yn 7ke*gr91u9qp4ioi(r yfilides head-on elastically with an identical ball eu1yp6y(g94fro n ri iqi*7k9at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very light objecc6jiko,i8kys e0/h x (t at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What isk( xij ki /es,608cyoh the speed of the light object after the collision?

  A very light object moving with speed v collides head-on with a very heavy objeem g:9z9io4hi ct at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed omhi 9g9eo:4 zif the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s col1ivw*q *fttky(zlo 2 /lides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collisi t/kyiv z2(l**fw toq1on?

  A very heavy object moving with velocity v cwc poicy+f7.:3,oqhew , pbe+ollides 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 light object after the co+:op fhcepqi3bce, ,.y7w wo+llision?

  In an inelastic collision, ifh;a v)zs r.rfp/4(b2zloxj e0 the momentum is conserved, then which of the following statements is true about kinetic enzvox sa2rj p.)r4lb;f(z0 h /eergy?

  Two objects collide and stick together. Kinetickew(yh u*7: fu energy

  A 3.0-kg object moves to the right at 4.0 m/s. Ied 35 ossuv6.gt collides in a perfectly inelastic collision w3e5s s.u dvog6ith 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 wi 9y n)rulhmlv(2ssg1 )th a large object and sticks. Which object experiences the larger magnitude n9(mvy hr u2))sl lgs1of momentum change?

  In a game of pool, the e2 qfucn9i7j7+ bw)bawhite 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 ofgll19krk/x0w oh 9j7q09hy yf the following statements is falsewyj/7ho0k 9x 0yqh lk1l9gf9r?

  Which of the following is a h+ tb nqr*c3meku)4hs0ay4h6false statement?

  Tightrope walkers walk with a long flexible -vr:ey4 8rlvnrod in order to

  A plane, flying horizontally, releases a bomb, whfg ;x8ff /r8zuich explodes before hitting the ground. Neglecting air resistancf;fr88uxgf/z e, 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 c;-+6 hsv:fm qk2f setuompletely inelastic and both cars quickly came to rest during the collision. What is true about the v-v2sms f:q +hu;tk6efelocity of this system's center of mass?

State Newton's second law for a system of particles.9ygv m5-sdbqlscplh j+.07)f

  What is the momentum of a 2000-kg truck tr-0u:9qsqm oomaveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of ozc8x.:cv5zj its momentum :joxzzv58c .c?

  A ball of mass 0.10 kg is dropped fy+bhla4o .1 urrom a height of 12 m. Its momentum when it s. ulh14oybar+ trikes the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. Ouv aopzl42a n cq,8/q1ne moves with a speed of 25 m/s due north and the other mov/o,pl1av2qazu c4qn 8es at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontyfb9 jiav:k1; i ; pvppx dn2j7gi-o84ally at 30 m/s, strikes a wall and rebounds at 24 m/s. Whatp8 a;xgoij4: - ypf bnpvv91 7;dikji2 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 strucgp,5 9 vvmcjb;2uq- iok by a racket cpu 9;b c-, ovvjiq2gm5ausing it to rebound 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) is ple/sad-0x ;.wvdz.7 1b plndmvaced on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direczwb /s. nvm0; ade xvlpdd7-1.tion. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is spaf t 21bs9m2okx3g brs xnu+3v1ce-walking outside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he thrmv+skn3o1 bsbtf2 xg1u 2 39xrows 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 approa)7+gfbjj3v2v 7fpw tnches head-on a large object at rest. The smal 7jvwf+n pv)3bg t27fjl 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 4.0 m/s to greet your friend (40-kg mass), w,bxy++yf(za p qh6t 5hho is standing still, with open arms. As you co+( tq+,ybhy f6 pxahz5llide, 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, s xbyc(.m bmh.-traight road at a speed of 6.0 m/s. It collides directly with a stopped m.b -mc mby.xh(otorcycle 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 stopped car+(9 owrnqlr8gh6v9x(z u-raof 7(o sx that has a maso 7g urzx9aq (6-9vlswhr8or(+(nfoxs of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight c,gbq z11.ifmu4apxhmr/s 8f ( wg oh;.b (.htiar, mass 15,000 kg, is allowed to coast along a level 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 tr4/hqbzsitfh(1.8b m(f. i.gg ap u,o;x1mwh he speed of the two cars after coupling?

  A railroad car, of mass 200 kg,5rx pocl 6;h0a i*d9qd 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 f*0 6c5ihr aqo pd;xld9ast will the car be moving after this happens?

  A 60-kg person walks o oyzwsbpqc x+5o1:zx571ud m2 n a 100-kg log at the rate of 0.80 m/s (with respect to the log). xy5d1mx 2czq +u spbo5:7 oz1w With what speed does the log move, with respect to the shore?

  A 4.0-N force acts fh /5 uavlq-x9oor 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What ivo5-/ qh9alx umpulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0( bpx 5-sn3cjx s on a 6.0-kg object. What is the object's change o-(n b5x 3jxpscf velocity?

  A 2000-kg car, traveling to thtv0.x2u igc-qe right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car .2xic0 qvug-t exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 .qajqonv,(jp/ ydumkb-9t 1 te4e2t+ m/s. You hit the ball back along the sat+j 9an-tv m1o4 u/tkyqjeb(eq,2pd.me 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 table tomncqx82pw6,jy r 1k.p p. The speeds of the ball 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 s, what is the magnitude of the average force exerted on the balp2mjwynk6qrx .1c 8,pl by the table top?

  A machine gun, of mass 35.0 kg, fires 0( n ivcwuixg*7+w:od50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rxv iw:7i dcng0 u+*(owounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door ofzbevoji- 0yqxh - 5,5+bt 7zwst2ir2a 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 minimu5hz it+ ,5ajr-otw-qb is7yx02 b v2ezm velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal draixf;9z (lz :pj6r pixa(npipe 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(9:i;p6x jlpa(frzz x does it exert on the ground?

  A toy rocket, of mass 0)dxq 8v7jaabi cg8r fjrffol:3n1 :30.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straigrl: x :fbqnfgr8fai38c3dv1o7) j j0aht up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially adc:lfi+m*g6ov3 v +py i8ol,at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has move *dimoaf6 :y3i+vc+l8lv p ,ogd 12 m?

  A 3.0-kg object moves t1gds ljms 8c74vc91yro the right with a speed of 2.0 m/s. It collides in a perfectly elastic collil84gjss1 9vy c cm71rdsion 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 thesij fx 2f4)wve 6 j;,fzll62jj ew8px+ +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity jj;)pxxil + wewj8zjf,e 2sf6 2vl46f 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 bl95em1uuval d9btoi d2hd6 4h7ock at rest. The bullet emerges (the b9o7ddut1lh i adhmb4 e6v25u9ullet does not get 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 struck head-on by an alpha-particle0zafl5 1 lilt djrl:;x1w6e2 t (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 coll2trie l65;x :0alj1l1zlw tdfision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stwo 6:*c9-r3ru jwg b9yki jc)dationary ball of mass 100 g. The collisi9jdcjouw:rc rw3 b9y *-6)kigon is elastic. 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 t;ng:wp)-x: ;zup :wed.d k/ ut2qwhvhead-on with a 200 g ball sitting at rest. The collision is perfectly elastic.zwp qdupn :w: t:).k- 2hue ;dtgxv;w/
(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 /y:;(0e zvpvbp ,vs ybspeed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. e;s /p0(vb:vyzypv,b If the collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the88 4kv *qrhueu east at a speed of 4.0 m/s collides head-on in a perfectly8vqkr uh8e u*4 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 parked station wago+ux,hpu59myb1f c r) tn, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic ene) p5ytmch1,+ ubrfux9 rgy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertil fi *x8xe6;pycal direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combinat*x y6if 8p;xleion 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 c- xn9rj egc7o.ollides with 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 the speed of the cars g7 eojr. nx-9cafter collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-c 7.n pdfbfc 4ram4a:e/8 ;achkg car traveling at 60.0 km/h sourpd anh84fcm: 4;eafbc. ca/7th. The two cars stick together after 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. Object A mge74ag l..5f)vcqxtynrqw0-u 33 wcqoves east with a momentum of 24 kgm/s. Object B mov3n uqct37 a50y4vcx - ).gqqwerlf.wges 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 moving towa/ r2ft91 l cuno54h gv2mq(qwlrd 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 u24f/on1 l(m 9 wcrq2qtv5hl gwith 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 = + 21.0 m. dduv i3gv/in l870-jk Where is the center of mass on the x-axis? k8v7ddl0v 3ni/ ujg-i

  The center of mass of a two-particryen ,;m6vvg9le system is at the origin. One particle is loca, vvny em6gr9;ted at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 bl(4pp5p7s b8(vcm lp kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine tllpp (pv5 8p4bcm7 s(bhe coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0),1c9 h8lyq. nwc (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of 8lqw9 ychcn1 .mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass o/(v8pi y8jynis positioned at (12, 0). 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 o iyvyn(j8/p8 at the origin, (0, 0)?

  Use Table 7-1 to calculate the d7cy.l 3nojqadmd/8wl hx68.position of the CM of a whole leg including the foot when the leg is stretched straight out. Asy/ml3xn8l. dh6d 8cdaw.jo 7 qsume the person is 1.60 m tall.