What is the SI unit of momentu(gttsp:n9p/e o-wb 5 qm?

  When a cannon fires a cannonball, the cannon will recoil backward because the *f+q-7.o drb3rygx 569(xvrrfr, qav: jdkza

  A freight car moves along a frictionless level railroad trza4m0/t f9 dbhf*9 hhyz)uu+nfg 15heack at constant speed. The car is open on top. A large load of coal is suddeghz*59t ahu/ nh udfz10hfmf9yb e4)+nly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless gr6g8s br*hd 6ice. What happr srh6g6gdb8 *ens to the velocity of the sled?

  A rubber ball and a lump of putty hav;yck+8wcx.e-wf 9 zs kl71bz65h ommfe equal mass. They are thrown with equal speed against a wall. The bam kw 1b;yxs 6+ewccfm.7 hf -k9z58zloll 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. How would you revqyq,o49emv us.go 6wq3jy.+b f ye: 8present its kinetic energy in terms of these e,y jeoqu svm+oy6gqq:b 3 9y.8.wv4f two quantities?

  If you pitch a baseball with twice the kinetic energ j7 es86kuw 1naps*p-my you gave it in the previous pitch, thp*wusk6781jp aesm- n e magnitude of its momentum is

State Newton's second law in terms of mom 2b5)zqtbw j, x.7ld/rrw4kv pentum.

State the law of conse0 mkfb+fq2 a6krvation of momentum.

  The area under the curve on a Force versus time (Fafzv59o;0ebq0gtkd: 9s (vi b vs. t) graph represents

  Which of the following is an accuqq;yt dpow)ixkh+7s +g m:o c6:4 v*bvrate statement?

  A small car meshes with a large truck in a head-on collision. 5 gpft-09 j1ksxuf jy ut1o;p,9oyp;mWhich of the following state5-0x s 9;ky ;1ympp9o 1jou,f tgujpftments concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are droppedv9a vquo kepazo k:-f8b l,(30 from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collisil3paok q,0ev9a :v8ou bz-f(kon with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collncn 5glpmm5b9k 1qk7-ides 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 magnitude impulse during 579pnbqkmn lc1 mg5k- the collision?

  Two objects collide and bounce off each )( yyfr6j7z ny 1tgt0qu(s)fcother. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collid8dxt t6o+tno 6es head-on with a 6.0-kg object moving to t+tx86 ootdn6the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving kq1w- * nhn0w/4tutuuat 2.0 m/s tackles head-on an 80-kg halfback runnwt-u 0 n *uuhwnt4q/k1ing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which omqne6:u y3pv:hgp j5k zi +f1/f the following statement pqnu:5yejm6 i3z+vf hp/k:g 1s is true about kinetic energy?

  When is kinetic energy cj vn 3veiuxz:ta2./ s1onserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 bg-6 eltg1* qv ai6chsv*r6( xvall moves away with the same vee*v (cv*txqg sha 6616-vrlgi locity 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 a1iewy fl9bcow 2,u- a76ywxw9 be;(f w heavy exercise ball at rest, the beach ball's speed after the collision will be, approximatelye6f ;9-iyb(79,owe1wb w fuy 2c wawxl,

  A golf ball traveling 3.0 m/s to the right collides in ae/ tjc7wu5, qg head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the co 7/t j5qgwecu,llision is

  A rubber ball with a speed of 5.0 m/gy- za4j;. tids collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the collision?i.;za-tj g 4yd

  A very heavy object moving with speed v collides head-on wit jv4m bioy:0-vh 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 oboy :m4v jvi0b-ject after the collision?

  A very light object moving with speed v collides head-on wig 54cr0x1i qksth a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The s4q1xc 5rgi0 kspeed of the heavy object after the collision is

  A red ball with a velocity of +3.0u++2r 9 y dxofveey:h9 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the u9r: dfy9ve+h+2 yeo xvelocity of the yellow ball after the collision?

  A very heavy object movs7z g7ypm59ja-lu 2w ting with velocity 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 ofs7t 2ag7l-y u95wp jmz the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then u w 8kw19p- 3(v wi*wotdis:9w5geyypwhich of the following statements is true about kiw w9yd8w5uwi(:-twy v p9p*k i31ogsenetic energy?

  Two objects collide and stick togethe3eoit8r2 rj,0:wgi ql/ ypxjn ( j)gs+r. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectlypcv: 8r0,siosbh q9-f inelastic collision witvss:pifc9 hr -,8bo 0qh 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 stic,:dx )selce t+ks. Which object experiences the larger magnitude of momentum chang exe t)c,l:d+se?

  In a game of pool, the whitk7ealjvt(fm5l3 zxf* y* 4ds5e 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. fxwj 969a gdq7Which of the following statements is false?q dj9 9fxawg76

  Which of the following is a false statemen3um -45pq3nh q2xvuj at?

  Tightrope walkers walk with a long flexible rod in order:ed h5;po0y;5d lucq k to

  A plane, flying horizontalluf-oa2 d+0diky, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosukadoi f-02+ dion

  Two cars collide head-on on a level friction-fre+feesym( )/rge road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velofeer g/ +yms)(city of this system's center of mass?

State Newton's second law for e/ * ty n)-s+0pokcpwga system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 vw0zs; sy(any. /gl9)wcl0p am/s?

  A 1200-kg ferryboat is sc xn85i:bc 1tj*nrv6moving south at 20 m/s. What is the magnitude of its mome8ics* t: vbx 6c5njnr1ntum?

  A ball of mass 0.10 kg is drop960 mkf2ln- ygupqv o,ped from a height of 12 m. Its momentum when it strikes tvof0up26-nykml 9qg , he ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One ywm 2eqo8:k vkcaq,- (cf.w0h moves with a speed of 25 m/s due nortmak e(c fhw8cq q-.,v2:kw0oy h 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 ykok.0 y f60fghorizontally at 30 m/s, strikes a wall and rebounds at 24 m k0y o60gf.fyk/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis bal zd/npm9wd3l llb* ;d/l, initially moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the oppo;lwdzn/m 3/ bld9d*lpsite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excxjc 2p d8 1zlu )31wstfiw*a+mluding the baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s indz)8clm ui+wpxj1s 21a*f tw3 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 capsule and is o*xk /sttt8*ah/ap4vf+mk q5stationary 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 frvaq /a*fs54ktx8mot+ p*k/ t hom the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s a (cx funstw51j6cd.)b- mcnc; pproaches head-on a large object at rest. The small object bounces straight back with a momeu5jn) d;mtcw.bf c1(x6 n-cs cntum 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 v;jqd. mku6y4to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other4. jku;v 6ymdq, with what speed do you both move off together?

  A car of mass 1000 kg moves to the 6k:g; /0v hectefr)jy3;bfes 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 hjkfr63 eesfcby/; g: ;v)e0ttotal momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that has auwfd-hxn6- zf1;r-w5gz 8s :i so rt;g mass of 1500 kg and they stick toget hgx zgrwf- r8tds-s;- 6f1o5wz;inu :her. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a leveld; ,dooo bqurg-7f54g track at a speed of 2.0 m/s. It collide-;fg7q4gr dud5b oo,os 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,z f*b3j(wf9qtim.xp: rolls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops strax:jq*z.fpwf 3ib9 m(tight 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 t(1f hm ox2wqm1*c uo3respect to the log). With what speed does the log move, wi* m wfohu2(oc1 t1m3qxth respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. Ty5- rx+pl knh 8byf*f3he force suddenly increases to 15 N and acts for one more second. What iny3yk r +xfhbf-p8*l5 mpulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg objec51u2 3xylq g w9buda;vt. What is the object's change of velocity?a1wuuy;l g3d9q v 52bx

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brica04moba46ty0f,6prdit t te:k wall and comes to rest in 0.20 s. What is the average force the car exerts on tt6,om0 y 4atb0 ifet 4rapd:6the wall?

  A 2.0-kg softball is pitched to you at 20vlby 5m04ge;,b g -qtai/u-qo l5o/xl m/s. You hit the ball back along the begt/-/5x yu;o-,0lmi4loqa gl5 vq b 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 exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball right 96 hy; 6g6; crqklhk)kx7lou ibefore 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 ball by the tac) k6 hogkr yil79ul6xq6;; hkble top?

  A machine gun, of mass ,68t5wxze9 ztd-:x4aaov iow35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average forc9,v5a-w8z4 oie tx taz:wdox 6e exerted on the machine gun mount?

  A fire hose is turned o-s6mu p66hqn+fw l z8lgrn o.1n the 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, wha6-opfr 61 +s6nm qu.nzhll8wg t 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 pb ztw.jd;t7at/s7+kn er minute. It falls 3.20 m to the g b w7dt/zj7at t;.snk+round. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.k2smh/vf ;m 8 qmb39tp,l-jga12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engine exerg tm -b93l8pmv 2fsq,j;hk /amt?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer s pqbd(gu 6g1n/ro3b 3o8i3 bgspace. They push each other apart. rgs1q3uobgb683p(o gin3bd/ What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to tbb8pth* ne0( xx/v2sy.aum6p he right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object.2/euvxp(x86 s0b*myth bpn a 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 velocif0dthfc /5gup pr65m 7ai,-( p1qkgxzty of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initial 6d/5 pm ph(7aqzp5-c if urfk0x,gt1gly 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 h;whcxt vxff:njc,yio2 65:+2qi h5r is fired into a 1.00-kg block at rest. The bul 6thc2iqv25fyox:hcf5 h + , x:;nirwjlet 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 the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (wc,0o;xr.ib q rhich 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 collision? br.;rq,ioxc0(Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a h u9wbdd;m9bc /l.jrx 67uvm*stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediate .j rvcumbd du*m/hw6xl799 ;bly after the collision?

A ball of mass 400 g moving toward the east with a speedfm: j7k)bn-ou of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elastic.b :m7fojn) u-k
(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 wsx.x6c:ex zo8*l(rz. kn xmz /ith a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the 6/m:rc(ks ex.*x8z onxxz.zlcollision?

  A 2.0-kg mass moving to the east at a s6)s7 z z6x: xo/kqhutbpeed 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 losx6utko:zqx)/s z 6b7h t during this collision?

  A car of mass m, traveling with a velocity v, str5uo n 77s 8pvp7qnkc3pikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-ooc778v nsqu pnkp57p 3n 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 itxx hpb:g:-4n**pc uowoa q19 kself in a 2.4-kg block of wood a rnux:*chwkoqab- px*9p 4: og1est 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 csoe-zwysf6 efv g88nw b 049+uollides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the co-+s 9w4y w06gsfen8bf8 o uezvllision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/zd nrni228e a/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.) What is the direction of motion of the cars after collision?8 2re2d n/niaz

  Two objects move on a level frictionlenhln*k6: g+)nthr+bct 8wka *ss surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What i68btwn*r)alng k:*h+ kthc +ns the magnitude of their combined momentum after the collision?

  A small bomb, of mass /nfl yfj7t20cd)8foc 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 of 10 m/s; and a third fragment with a mass of 1.0 kg. What is the velocity of the third fragment? (Neglect a o/8 nc2yd)70jfftclfir friction.)

  A 4.00-kg mass sits at the origin, anozab;t /l)gy k*c)d )bd a 10.0-kg mass sits at x = + 21.0 m. Where i/b ctdbg za)))ykl*o; s the center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle is llo1y;ej/du 3xocated at (/l xy;dj ue31o3.0 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 vd); mblh1)ujvii 07uat (0, 0), 2.0 kg at (2.0, 0), ah v;j)1)iuv7 luimb0 dnd 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locat.jdc/h e t.;yqed at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of the syh ejcytd .;.q/stem?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positionedht nxn2 5e+qa c;8lu;f 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 at t ax;cennq2t uh+5lf;8he origin, (0, 0)?

  Use Table 7-1 to calculate the position okh.jf0bu aju/ m1.c )of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person i0.oua)m/ .f1k bjhjuc s 1.60 m tall.