What is the SI unit of momentum2/am 9ivys9j3 xsg(7zhz q)bp ?

  When a cannon fires a cannonball, the 4hvq fr6j(sq8cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constant speed.2ao hxjb0, 0in The car is open on top. A large load of coa,o nb2ai0 hx0jl is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What rn8ji.b;;)+g uwag d khappens to the velocity of tn+;rggd.ak iuw8jb) ;he sled?

  A rubber ball and a lump of putty have equal mass. They ar: wb5g1o-t1h9ew vvoje thrown with equal speed against a wall. The ball bounces back with nearly the same speed with go o hb11:5tvve9jw-wwhich 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 represent itsg2 e j-851wd ptx bq9srl.el1e kinetic energy in terms of these two quantitie8reej91tpx1b d -q5l.es lw2gs?

  If you pitch a baseball with twice the kinetic h -jk ;kxw*w1 ou 0esze0u1bsun6o0u -energy you gave it in the previous pitch, the magnwk0ssu*-u- 0jn6uewhkb eo01z 1 ou;x itude of its momentum is

State Newton's second law in terms oahv:bs-cq0g )f momentum.

State the law of conse 61nubx)v01l/ w1dzug r c-c; c.thnsxrvation of momentum.

  The area under the curve on a Force versus time (F vs. t) graph representz;o r)mwfp 5r 6*px 5r3gchhw+s

  Which of the following is an acch 0ze7 v0-d uy;tt2b gb3tx.qdurate statement?

  A small car meshes wia. tx u/ p8:cdj+rxl*jth a large truck in a head-on collision. Which of the following sj *8dprja: l+tcu/.xx tatements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) 1- h)22vyiyl9a8dza ,fxi lzf are dropped from the same height, and rebound off the floor. The red ball re9)-z2 y2i xla1fzlyh,fiva8dbounds 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/s, coll;w tm+90tkbsa2x16t-stgj5p nviit 7 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 objecsv bj s+ktt-7pm1 iw t0tg6t9a;xi25nt experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linus-s1o1 e7 owl vmj8+near momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collidev84l 7vrtvb5uphti*x a,(hp +s head-on with a 6.0-kg object moving to the (a8v*5+,t74xr uhvt bi phplvleft at 2.0 m/s. Which statement is correct?

  A 100-kg football linew,gqcbdk1)p +skt0:f rox ;5n backer moving at 2.0 m/s tackles head-on an 80-kg halfback runrc01fstb+ ,gd: k ; pkqwo)xn5ning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the my.rjh/wmq68l ( dxrnhb-n r ,+)gq(fnomentum is conserved, then which of the following statements is true about kineticb.qnf rl( xg68 n/d -(jqwnr,+mrh)hy energy?

  When is kinetic energy conser)klmzcfb 0u.i4v + ogw d:0o*vved?

  In a game of pool, the white cue ball hits the #5 ball and stops,rlksu+(11 zgv while the #5 ball moves aw1lrvs+u(gkz 1 ay with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.y-uk5ytq v9 v x326;fvb m+jba0 m/s collides with a heavy exercise ball at re+mvxf-yb95ytju 3 a6qv; v2bk st, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a helaut-q3jr;dq04tw ,fa ty-:s- cc0zp ad-on collision with a stationary bowling ball in a friction-,t a3jufc dr-0w; s-q: ql0 4-ptycztafree environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed ofi0 hi0t-ubh;b 5.0 m/s collides head-on elastically with an identical b tbb -ih0u0;hiall at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with sj+ ll: abudq/5un( *9sp;qhkupeed v collides head-on with a very light object at rest. The collision is elastic, andh5d*nuaq s+/k: pq; 9l uju(lb there is no friction. The heavy object 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 nuz hwb 9b.;ss +:uy*tvery heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object afsn uub; yh9*.zwt+s:bter the collision is

  A red ball with a velocity gl.lupuw+ n )*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 w).plnugu * +lis the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides hek;r zx6e.tbif )8m/jwad-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object bartwbmx6fi ;j8 z.k )/erely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conservedts (uocxku1 /7, then which of the following statements suo k1c7 tu(/xis true about kinetic energy?

  Two objects collide and:a az4k;ej v/oy4nw0 vjjj,8j stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly inela:cahk + xl h8u/g)c.vdyy;3kdstic colly8dkah)vlcy h;u+c3.k: d xg/ ision with 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 odzx w1,p2gx9 zpvyhiy2-8dd : bject and sticks. Which object experiences the larg,v2xyi h-x82zw 9gpd:pz yd1 der magnitude of momentum change?

  In a game of pool, the white cue ball hiyrydt2s;b x,( ts 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, giuq/9q0bvx:zb f: t5 M and m. Which of the following statements is falstq0xi5:b zbq /g:9fu ve?

  Which of the following ir-6c8hx) s pi33b 2rj yezife.de*p.bs a false statement?

  Tightrope walkers walk with a lodh,oyq vr 8x mho/47b7ng flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting thw-.: 9ihprufu ybe 0,mr,6ht de ground. Neglecting air resistan0 ,re 9f hp6rh wyid:but.u,-mce, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head95lhwsb66ym;a: min l -on on a level friction-free road. The collision was completely inelastic a mn6 ;b9ismaly lw6h5:nd both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second 3a6i *9i7yj1botu) l.kwijbz law for a system of particles.

  What is the momentum of a 2 )yjouu k;;)nn)y yc dn5eq(-c000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the maakd t/vpz5 298or-ox bgnitude of its momen5 9x8r- z2v/aoobtkpdtum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mom e1+gwl* ;m(ahjg rei4entum when it strikes thee1+arg em*(;h ljw gi4 ground is

  Two identical 1500-kg cars are moving perpendics9)3sy31lbwarm2x .a ( qks jpular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 sq(391pja s yx)amb 2w r3sl.km/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wal a1tg9jm fzr73,jho8jl and rebounds at 24 m/s. What is the change in the momentum of the boj1r8mf3 hj 7a,t z9jgall?

  A 0.060-kg tennis ball, initially moving at a speed2xzvs( dcb 7 uh0a*l.y of 12 m/s, is struck by a racket causing it to re uh*.zd2 bc0 asxy(v7lbound 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 (b5e ur2)u4xz5rjg -x5hza r8s excluding 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? (Assux8- 5rer5rhx)b szugazj2 54ume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsu* gqvby(3z vf/le 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 vvbzgy(q*3 / fdoes the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a la az:+ejxiy7zj,/ ev c;rge object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. Wha ,cyxj/i7: jze+ae ;vzt 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-d/ n g.kh(q i*uy i*0kxs.nuo6kg mass), who is standing still, uxh*6yksug. /(dik. qn 0o ni*with open arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to thb gccw4gp,5+b e right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 2,wg g c4+cp5bb00 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s rutcz 5zc 0yrp6dg:x9; ins into the rear of a stopped car that has a mass : 6y5ipx0;cgz rz9cdt of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along nu v fiopxc:ko49/ *k+a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initia*f vuok cxn+49p:oi/klly 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 frix(+pjo; ,p vzl9mjd,b8d4w z hction 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 moving aftx4m;zwjv bo j,9ld(h, pd+pz8 er this happens?

  A 60-kg person walks on a 100-kg l61nwtki fia -h 8gl:/mog at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to the stm6 8/hi :1f l-akginwhore?

  A 4.0-N force acts for 3.0 s on an object. The pbp (g06vt,zuforce suddenly increases to 15 N and acts for one more second. Wtup,v(60 p gzbhat impulse was imparted by these forces to the object?

  A constant 9.0-N net forceo:hcp3 - sto h 8dszt wwx/*zqr/.+w41x hw4ex acts for 2.0 s on a 6.0-kg object. What is the object's change ofw 8e3csd.qo1r4px/+wz 4zthwh/x t -xwo s*:h velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a briy7 2g/0ofy4 80uem4dny t t7a,barjl hck wall and comes to rest in 0.20 s. What is the average force the car exerts on the wallhd4 t yyyn740 fu8ljt maaeg b027o,/r?

  A 2.0-kg softball is pitchedk5*7/q+3 id3 mundv2kcal ze tm7try1 to you at 20 m/s. You hit the 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 d m3k7+3ed1 yczq5alt7v*t2nr/m ikuexerted?

  A 0.10-kg ball is dropped ooo z :+ctzel 9ebqq)(2nto 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, respectively. If the collision between the ball and the table top lasts 0.15 s, what is the magnitude of the average force e2o)e 9l zebqct(q:o+zxerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires u7j2jxe5ua.xg mok1(0w*tt ,ijpw 9y 50.0-gram bullets, with a muzzle velocity oft0mw 7 u5igtjkx oj9yje1.up,*a2( wx 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning buildinkl-7zl 11gtze i*)l r;irx ig)g 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 velociie)z;-*i7 1)gxlltzrgk1 i rlty of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal dra vyq0j -lf)k+g 3bdeg)w:n p: s5n;iscinpipe 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 do3 -sgv b0w pncl5;snije g:)qf:+dyk) es it exert on the ground?

  A toy rocket, of mass 0.12 kg,uzo:su;v pb:am+ m1 -scrl w7; achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocketmp-;7 rzo v+1u:scw ;bsma:lu engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer spacn+/(i m(k vcbne. They push each other apart. What is their sep/nb+(mv ci(nk aration after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed o w6 k54vg,hvgbf 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 afghv wv5gk b6,4ter the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in thubx/l+ ehx3 q9e +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kgh b3+qelxx u9/ object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at re6w i0l fodw16 /1y mjsp xrx49b.mpic(st. The bullet emerges (the bu. y dsi0(j6iw rmx4o6c/f9mwbl p1px1llet 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 strcud71+/ ozc(kf 8o7dcte nh8guck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, whf8h7 o 7d8kuent z/+cg1c doc(at speed will the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a st .+ px.+kbw1bd;)8 cix 7 kvi7oufuwteationary ball of mass 100 g. The collision is elastic. Whuc b8ute)wbi x7w.xi +kk .p1+d7vf;o at is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward hh zaea-c51l5d/f (nn the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collisionazn h15f(a/ c5ldh-n e 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 a sp)wuydz o 9ahj6kc(32a eed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the showy6acaj9kz2ud( ) 3 peed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s colllyh-mi38u; wqr g*zqw ,p: ej9ides head-on in a perfectly inelastic collisio, ;l ueq8miwqh9j: yw p-z*g3rn with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling wilu,3tibm:k rl g alh3(zr( stq-,+tp;th a velocity v, strikes 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 energy is lost in this ,lti s m3r(hqt:g,zlrk+p ;al -t(u3 bcollision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a jaetd/z (-m9p 2.4-kg b tm/d(jepza 9-lock 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 witfd9es qr0dh 0y(g m,e8h a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What90 mgefqh8yrd (ds,0e is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 300ez;as a -dhv2jg9 +6 2wg0yz dmq6elp80-kg car traveling at 60.0 km/h south. The two cars 8qah2edwa20 9j;zslp+ 6yg-ezm v 6dgstick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a shennii r ,;gs1n k0-+level 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 collision. What is the magnitu ;n,esi nhgn r+01-iskde of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity of 4.0 l*mm4wb3a0ht ; wv;9my3kvi k 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 i yb9vk34 0m3; vamwtwkm*l;h 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.1 7eqd1y npsqdd,yx1y - qzi- = + 21.0 m. Where is the center of ma-nx dp1 y17e dqy.qzdiy,-sq 1ss on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle is h:pbid jc, ,;f6y4oq s3a2yw wlocated at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass o4scop:6yqafjh,2,;w 3bdwiy f 3.0 kg?

  Three masses are pos4--gt1*g 0cp 1 spewgnnl7pquitioned 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 of mas u1p *pwt1pngs-4 q gg-nc0l7es.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locatek;c; ; i0 h8lv7fsi rgz0wuv9xd at (0, 0), (1.0 m, 1.0 m), k cl xuv7g; ;hwzrfv;08s09iiand (2.0 m, -2.0 m), 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 positgn25ukk (kwd xt3xd/5wpk 35nioned at (12, 0). What are the coordinates of a 4.0-kg mass which wiwkgn3uk t5wk35/nxd2 x(kp5d ll 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 the position of the CM of a whole leg including the r;c(p;97fb )wahu uxofoot when the leg is str7 x;)abwufpch(ruo ;9 etched straight out. Assume the person is 1.60 m tall.