What is the SI unit of momenty 8p/ej o3op8yum?

  When a cannon fires 9,. ;. 7n* ; trxsbitzwbjhy(xm:xvmca cannonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad t 32sw9cda0gkt rack at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity os0caw 3t9k dg2f the car?

  A child falls sideways off a sled while sledding s:;9.qz zksv ion frictionless ice. What happens to the velocity ;qvk.:sszi9 zof the sled?

  A rubber ball and a lump of putty have equal mass.m v6yskh2nx 1bt7x z-6 They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty z n6-v1b7k2sh6 txy mxsticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you r/m myb( p3oh2xepresent its kinetic energy in terms of these2bxom(/ y phm3 two quantities?

  If you pitch a baseball with twice the kinetic energy youev//rm y)n, u.lbb)m yq*ld,sq 0p ya. gave it in the previous pitch, the magnitude of its momentuml v*s,. yq 0ym)/len.q/ p abu,dybr)m is

State Newton's second law in terms of m+) 5 omkkjgy)xy th62 -n 1qkwo,nbr6comentum.

State the law of conservation of moment*uob; b0 3ojx:- cit0 e7rprrsum.

  The area under the curve o ja2 sh ba*jr3tcx38t9n a Force versus time (F vs. t) graph represents

  Which of the following is an accuratg.7 pvi,l7q *q8l j*7jurn kpce statement?

  A small car meshes with a large truck in a head-on collision. Wh9 b)m2iqestb f/ kl40 )m1jmakich of the following statements concerning the magnitude of the average collisionsl0 t2 mm f1/m4jikba)q) ke9b force is correct?

  Two equal mass balls (one red and the other blue) are dr0r m ez ).2(wsp13dca izbbhkui( ls;1opped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnih(skse l r;d)zza m .p(u1ibwb20i3c1tude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/ubpzx my /5o35 g ggy*)vd v3(w52afmms, collides with a stationary bowling ball. The Ping-Pong ball bounces bag5v *mmdz agy2xw 3 m355obf)/(pgyu vck 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 bounce off each other. Linear momentumru*6rpa 4;u wg

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with98nbueyq 9j+ f a 6.0-kg object moving to the left at 2ney+98f9 qbju.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfbgu,inau l.ec : 2haazc)y*6 -cack runnich62 y-u)a:uiec lga*.a,zn c ng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the .p3tda/;xtnarw /0 lqmomentum is conserved, then which of the following statements is true about kaqn ./;xp r/t3 ta0wldinetic energy?

  When is kinetic energy consehi)2gwx:+f:umbei :m 0ycj6rrved?

  In a game of pool, the white cuy*bgug 0jgb ,8e ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cu8yug gj* 0b,gbe ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6. xy9cvr+v5u3 7zj8gbowntb-40 m/s collides with a heavy exercise ball at restu43x7wc9 tv-zb gv8 +robnj y5, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the righti1ob tu1tk/tp)s 6sk8 collides in a 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 collbu8s1stt 61ptk/k io)ision is

  A rubber ball with a speed of 5.0 mw f:1 b-zvfd3l/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after thzbdfl:f1-3 wve collision?

  A very heavy object moving with speed v collides head-on with a very ligh mjaotb;z .o;:t object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is th;zmbo : o;atj.e speed of the light object after the collision?

  A very light object moving with speed v collidesy* -fuw1obto3w,8 jf 5jm1 gav head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The spe1ju 58wfgt*3 wfoo1y-,a bmvjed of the heavy object after the collision is

  A red ball with a velocity of +3.0 mm+qc5x d ;2jdy/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is ;yd qjc+x d52mthe velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v c. rc 8uh0lk :,k-rhsqtwglpd9ig8z5+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 col-g + q k8rpg z wlh8hr,ud.c9t:lik50slision?

  In an inelastic collision, if the momentum i )jgt,l6kg0h xqjl6/ is conserved, then which of the following statements is true a 6gli6jgtk)/q xlh,0 jbout kinetic energy?

  Two objects collide and stick together. Kinetic energ6 w+.eli2(gaeq ;fylsy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfec, .b0o;;;ogr euxc hzjne eb 784b(aqttly inelastic collision w8o j ;;qonrc7, xh(ebue; bgea0. btz4ith 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 wiw 7s) uco2zg u;dhk7udzk0 -y3th a large object and sticks. Which object experiences the larger magnitude u;0z uw-d77)dzy ugcs3ok kh2of momentum change?

  In a game of pool, the whg bvn5 -p v0id.6wq81nxq 4ssdite 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. Which8au+ vcvdsrs2i+ d;-sn:w0 +0ouf el r of the following statements is falsef s ;s:u+eiov2v8a+drd u+r nc-l0ws0?

  Which of the following is a false state cyod9 -seu9,iment?

  Tightrope walkers walk with a long flexi)4 wwkl8)hxxvble rod in order to

  A plane, flying horizontally, releases a bomb, wh:ar5 ;m7- lqk5v3; aqyeumlxl ich explodes before hitting the ground. qeaq5lx uy3; 5 7klvr a-ml;m:Neglecting 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. Thx n xzptyq) 8ll*n)s/jg ,l +4to c)ve8e(my5me collision was completely inelastic and both cars quickly came to rest during qovx*m)nt5ze 8cge)(+,4nllx p)jslt/ myy8 the collision. What is true about the velocity of this system's center of mass?

State Newton's second l2me3 sgh3 kr(ym62j8 tn1b0,hcq niumaw for a system of particles.

  What is the momentum of a 2000-kg truck travewt+ j5 gq n1;yrfr ix6sj))1ya5ebk s4ling at 35 m/s?

  A 1200-kg ferryboat i z6kwt w po/5h5c(+neas moving south at 20 m/s. What is the magnitude of its momentua tkp+zew6c/5w (n5h om?

  A ball of mass 0.10 kg is droppe dndkrr//d ip83x;g/u d from a height of 12 m. Its momentum when it strikes the ground is/pd; gd ukxrn/rd83i/

  Two identical 1500-kg cars are 2pr y-r+ru,1rdip:p kmoving perpendicular to each other. One moves with a speed of 25 m/s due nor rp:+prypid2r u-r k1,th 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 horizontally at 30 m :9s o:.uxfese/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of theufes9 ex::.so ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/i w,+ h8st+rhws2bu n+s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is thes hw2wruhs+t+ nb,+i 8 change in momentum of the ball?

  A 50-kg pitching machine (excludy . f1iek;8x tp aw9s6m1xk0suing the 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 recoil speed of the pitching machine? (Assumek 18kmsw.9pfa x16xi;s ut0y e negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is statioigf,nh igsx1b86*n / vnary when the tether line breaks.ivnsix*n f8/6h,gb g 1 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 does the astronaut move toward the capsule?

  A small object with momentum y vyc;gk: - gyw8qy3.n pkqi335.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude k3nk p w8 i:q;ygy-vc3y .gyq34.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/sfhq wl6(1 ew1+ 7katgj to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each othe1wegkh+(tjflaw7q 61 r, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight road 5et6 w- gb20jdcm83zpf d, xqiat a speed of 6.0 m/s. It collides directly with a stopped motorcyc8 f2 mtzcgx jb-5w,dqe6i30pdle 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 gnfiq dpwv1 xad7:p *591fpq 8a stopped car that has a mass of 1500 kg and they stick togetherd: n x* qvdp gwp879iff15q1pa. What is the speed of the cars after the collision?

  A railroad freight carvpt0aq3m( aqv,s2t8t/p z, be, 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 rels8,m/b3qpt0 tp atze qa,2(vveased. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a hf4j az7wyexwb nm o/;t(0f:7torizontal track with a speed jz a0x ffn(;yto7wb4tm/:7weof 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 respect tfxhv+3:vsa pwo; whb :j v(n,3o the log). With what speed does the log move, with respect to the shn(+3a h:s3b:vf x,wvjv wohp;ore?

  A 4.0-N force acts fi/ 7v8us;hvfc or 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to thev8sc7 /i uvf;h object?

  A constant 9.0-N net . tv7/lmj0*cdp+ge ve force acts for 2.0 s on a 6.0-kg object. What is the object's chanj/+*cvg mtp. levd7e0 ge of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, / zc/fj5spg ) ysw(x6kx0gd+hcollides with a brick wall and comes to rest in 0.20 s. What is the average force the car es( js )wp5gk/cxx+f0 ygh6zd/ xerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. fs+rscp zj5cpij0 3 udau9 l3e6za22; You hit the ball back along the same path, 5cuz ue3zr+;0jif cjd3 aslp2 a2s96pand 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 b: z;f9* rhbexywc)s u5all 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 ball by the table top: eu)wzxr9 cf*sb5;hy?

  A machine gun, of mass 35.0 kg, fires 50.0-gram b +j gfj7 thpxtiy5)8k:ullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force )kj7y :ttp xf8jhi5+g exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in3uz6iv0f3kg uwrl bc + 9,woo;:be4 pq order to knock the door down. This requires a force of 1000 N. If the hose delivers 3u;+qlv r fc4bku0bw io3gpo:9 w,6ez40 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 pen +i7k2h1f;fu+qyvf jr minute. It falls 3.20 m to the ground. Assuming the wate;q 71 + f2fy+ivjfhknur doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a 75b*c5ucw i3nh6 lxyqvelocity of 40 m/s after 3.0 s, when fired straight up. Whaci575 lh3 6bqy*xunwct average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in ou;9o6j .4iif9ln u 3*nuiwtw cxter space. They push each other apart. What is their separation after the ligh.w*i cilux 63 i;won9u 4tnj9fter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with: ;a( 1jmaozqdq( tvj)k g1zq6 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 total kinetic energy afteqokd6;at :j1m(1gq z qja)zv(r the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the )bkeovd;9kfb 9 +vof2 +x direction makes a head-on elastic coll;k+bf b29dvefoo v)k9ision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving atgh8+ q..u/ nmpa2e r;w3c8 dtxmsep7x 300 m/s is fired into 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 7pcetg2d/p8er8m wa mxnsh u 3;q+x..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 (whmih /syaiq 3g8 .yh3ts*jids0. *c4usich 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? (Assume the neutron's mass equals the proton'tg iuyqa/.jimy cs3di s4sh. 3*s0*h8s mass.)

  A 50-gram ball moving +10 m/s collides head-on with a statio.ufba;1 6fy l1tbpp q5nary ball of mass 100 g. The collision is elastic. What is the speed of eacp.5pl1yu1bba6 tfq; f h ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s qh 8/npqjp2 l* fao9b) go)vd4collides head-on with a 200 g ball sitting at rest. The collision ogvqj)q 2/na9 l8h4*fp)dpbo 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 aa5o/:a t ay0cv speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision /5cyata0 :ova is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to 38e/ y5s, hk 3mn1)czerzgsv sd +6bmnthe east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stmkdy n1v5g +e8r ,3zbe)m/3h6 nzsss cationary 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 parkebxm:(cgv o3 9md station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this colx9m :v c3(obgmlision?

A 15-g bullet traveling 213 m/s in a verticalj) uh t/*azrx5 direction buries itself in a 2.4-kg block of wood a rest directlux 5 jt*hr)/azy 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 traveli(sye. 3zry.3 kv tv5jsng at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cay. e vtkj53v.s( zy3rsrs after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car trav a/60y prrhx9 z46yfzu8 m4kfteling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) Whp zk 9f fyzx/80uy4tah m6rr46at is the direction of motion of the cars after collision?

  Two objects move on a l xj+w 3,dgg) ,x+5wm4 gks,u l05wzryhne0usx evel frictionless 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 colliywwr+00,sdg j,ux4kx5 sg xwg 3 zne5hu,l+) msion. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is movins9qc u0a.x6whgd7x: i 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 fragmentd6 9hq7i.c 0sawxu: xg? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at 8q6gi8fd*q fdc4 ppiji *vy m(9zvw m/c7;n5v x = + 21.0 m. Where is the center o jyimv*v7 qg nv(/pz*c 46ic89 5ipd;f8dwqfm f mass on the x-axis?

  The center of mass of a two-particle4mvdj)7 ;e577ub1qdfax 09tygf fb xd op+0yy system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mas 9f 0dbme qt;7 fudjy0g+a77vo 1b)dy5p xyf4xs of 3.0 kg?

  Three masses are positioned as followd9 s5/h pon2zls: 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 h p9od /ls2nz5of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and/al eso(jr,3x 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center o3(sax/el,jr of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positix57-uljna 1l8dwrt 6h oned 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 mx 6-1 8lntljuwd rh75aasses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the nqy9;kf-tq3eux3d70 c szr0s CM of a whole leg including the foot when the leg is stretched tds7u 0z rnqxy;k0 33 qscef-9straight out. Assume the person is 1.60 m tall.