What is the SI unit of momen dlgjp9t ay 7*23s8oep lcq1,ptum?

  When a cannon fires a ca0vyqu u m-ut833pp zw)nnonball, the cannon will recoil backward because the

  A freight car moves se9uy28 s v iaa/4v6sdalong a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What heiu4v6ssvy29s ad a/8appens to the velocity of the car?

  A child falls sidewaysvi,p1me ( vfp; off a sled while sledding on frictionless ice. What happens to the velocity of the v(e pivm;1pf,sled?

  A rubber ball and a lun 8 eq8 qurfk +y.evdjzi23l8)mp of putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum8u lz8 q jnefqd8rikvy.32) +e change?

  A sailboat of mass m is moving with a momentum p. How woul4ksx-fri z +4bd you represent its kinetic energy in terms of these z4 kr- xi4b+fstwo quantities?

  If you pitch a basebaltx i59e1lccb) l with twice the kinetic energy you gave it in the previous pitch, the magnitude of its mo ex)5c9lb ic1tmentum is

State Newton's seconyytn es,fr )aky.;t8z1+t1c xd law in terms of momentum.

State the law of conservation (alff 4n*tbh6 of momentum.

  The area under the curve on a Forceq1 wkz-ad:yw- versus time (F vs. t) graph represents

  Which of the following is an accurate stawg 9l)vy(z: hy(kul*ctement?

  A small car meshes with a large truck intph .4d av3r5r a head-on collision. Which of the following statements conv r atdrp3h45.cerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red andwwnrzj8 o(7 r( the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is ( nrw8jz(o7rw subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving easvrv.af4+2llxj *t/ x mt at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly t.x4+x2l vl*a fr/tmj vo the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce of3 h co .d3wxc0if7vbc1avtn.5f each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a sjyu6x ffx,gsmxyc :9g c+4( s:9 n7dw6.0-kg object moving to the left at 2.0 m/s. Which statement is corrcxs c4njfydw 6(uy g,:7s:ms9x+gfx9ect?

  A 100-kg football linebacker mx 4fs7 rb wh3si+7j3lvoving at 2.0 m/s tackles head-on an 80-kg halfback+iwhf 7xvs3bl 74sr3j running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisio kttz5i7/f+0y*c ky 2xin otu5n, if the momentum is conserved, then which of the following stat 7t2kck0i /f i5yyonzu5x+*t tements is true about kinetic energy?

  When is kinetic eneryubvl)x;4u f6zqv+,r gy conserved?

  In a game of pool, the white cue ball hits the #hf7tc23jeeo0sr k28 p5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collisionkfj2 2sc t0hp8oe3e7r is

  When a light beach ball rolling with a speed of 6.0 m/s collik +mu:(t9gdzcdes with a heavy exercise ball at rest, the beach ball's speed after the collisio:d+k umtg(c9z n will be, approximately,

  A golf ball traveling 3.0 m/sbc f,jfc 2s/ n+2hf rbe*ce7x, to the right collides in a head-on collision with a stationary bowling ball e2 / n,fc*+c,r7ecx2bfsfb jhin a friction-free 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 ovgk09 /y gd,zatl 0v5uf 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stoppe09 l z/ 5a,0vguktdygvd ball after the collision?

  A very heavy object moving with speed v collides head-on ,4r b 0 pgigmaaqw. z/h)i0*bvwith a very light object at rest. The collision is elastic, and therpq ggbbr4zi0)a,havm 0*. /iwe 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 very heavyst ;ofr)cb*6df 0. ptu object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the c.*s uctfrp 0;tdof6)bollision is

  A red ball with a vem7979tv4 kr6 tx hdf.7 hoebsfo2f0uxlocity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocitytsm. f9k vhh76xb tfdo47fe0ro2u97 x of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity6mtwo pmy-;*a v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no frictipamow y;t -*m6on. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if 58 4m bj4fqyjxvt y.:nthe momentum is conserved, then which of the following statements is true about v4jn5: y4b.f qtmy 8xjkinetic energy?

  Two objects collide and 3 b+xlnaus13jstick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a y- dnv6vw;3c evc.2 nmperfectly inelastic collision wicnm6vd ;3y - vvnwe.2cth 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 awhd /d 9 ln6j0cmn/tjm,58fve nd sticks. Which object experiences the larger magnitude of momentum change mj0djc/ewlh fn dtn6 /v9m58,?

  In a game of pool, the white cue ball hits the #9 ball and is deflecte ie ,3 e0wmo1xa,93rsobm lni s;n,0srd 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 of the following stzrip l w9pp.;j*ha9q pk;7e9 t1s8,oe,hfbqa atements is false?h;e1,*zsp rpbe 9ia8w.hq9qa 9tfop,j pl;k7

  Which of the following.-77yoejq2:y o bg f oskmvg21h-p,xm is a false statement?

  Tightrope walkers walk with a long flexible rv3 vhl:na1d df7mbh p7e(/ bm:od in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting t:ibqfpn2h 6y p,os( 8hhe ground. Neglecting air resistance, th8ns6: hphof 2 i(,bpqye center of mass of the bomb fragments, just after the explosion

  Two cars collide headri)p8t+ 0wx drq,r6vs-on on a level friction-free road. The collision was completely inelastic and both cars quic0+6,) tpqvrdr8ws x irkly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for atgixxbh (d8g9z;qy x v,1a 3+r9mu;aodo,s i6 system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 g :rb8a )zrn-tm/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What ix 2p4b,kqhq 1+bws w8es the magnitude of its momentumb, wsqkx8+4qep w 21bh?

  A ball of mass 0.10 kt w8ah- 42iu+u**:cxvdrf kvsg is dropped from a height of 12 m. Its momentum when it strf8ut: rxa* -2u v4ihdkw*cv+sikes the ground is

  Two identical 1500-kg cars are moving perpendicular to each otherkn9zd+ 7g :kcr. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of t dk+ckg79:rnzhe system?

  A handball of mass 0.10 kg, traveling horizontally at 3o,clefz2kr.-g 1vi+ v27 stiz0 m/s, strikes a wall and rebounds arv, 7cl+o2ivs - t.z21 ekgizft 24 m/s. What 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 struck by qv67m/npci )gz8tr7f9dc7; boku h:ta racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball/)pc7:mtkizg n rbo;q97du6hv8t f 7c?

  A 50-kg pitching machine (excluding 4slh 8 .ud5cdcthe baseball) is placed on a frozen pond. The c4d 5sd.c uh8lmachine 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? (Assume negligible friction.)

  A 70-kg astronaut is spaen-cf rhwsyq9j67/ m ;ce-walking outside the space capsule and is stationary when the tether line breaks. As a means of returning to t nmc; -/97ewsfjrqh6 yhe 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 5.0 kgm/s approaches head-on a large obm(gt w:16;nmzzjh 1v oject at rest. The small object boungozh m1z tv1(n:;mj6wces 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;;6vy b. p sltm(sl:m+bq, bai.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collidpm s.ltlv6a ,b:;b y(+sq ;imbe, 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, straight road at a zoqs7mz51l;hv + s 2l b)t6vzespeed of 6.0 m/s. It col +; )2bvs5tvmo hl7z zqes61lzlides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s ruc*7 gsrz-7tr isz ,i)/d+h gzhns into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of theg, z)zt 7c7h*gzihrd/isrs+- cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast alonuuy 2vco f9thal+ m/96g 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 the speedatv/y uf ou2cl9h9m+6 of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligi ks+/7bw9putbble friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straig+u bkwb 7s9/tpht 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 to h,r+cz jh jas*k5qdt+ ,.ya nj4 ktu5;the log). With what speed does t+55hkqt+,cnu aa4 y*k,tjr.jzd;j s hhe log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force sudd2; n8l rvgnc4lenly increases to 15 N and acts for one more second. What impulse was imparted 8v;cn 2n l4glrby these forces to the object?

  A constant 9.0-N net force acts fjp3.t uvf6qw ui8lbjz1 us ,:)or 2.0 s on a 6.0-kg object. What is the object's sv1j.j uq, b tz uw:6l38f)piuchange of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a bro0hnosj)9k v/ ick wall and comes to re/kns hj)9o0 ovst in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched t l2:r(zgwc-sio 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 exerte2 -ri:sw gc(lzd?

  A 0.10-kg ball is dropped onto a table top. T 1wjmuyz v, s3jp25um oez.5-xhe 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 p 2zyjoue5m,1wzv5u. 3xjm-s 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, ,vs :mdcyo5(e92qbdp fires 50.0-gram bullets, with a muzzle velocity of 750 yo5q:2bmsd9d ,vce(p 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 0ha.8w(froj xp mj3- qburning 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, ass8 wfhm0.(- joqrapj3xuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at th;smtl61yb ac+ e rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming t6; cybtam +1slhe water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity ofv+u . /nmrbgnn8je4n5+ ,gzto 40 m/s after 3.0 s, when fired straight up. What average thrust force does,n bg4r/mnutg+nj+evz .n 8 o5 the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 k)ylnin4z 88mb, 7vvh og, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has moved 1o )in4v8bh7vnl 8yzm, 2 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. Ircrw ;b7mc7q:t collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the t :r;bc77rmc wqotal kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction2dbwij;xz-k)+ lk 7u6/mdt:nu9 aqwk makes a head-on elastic collision with a 0.15 kg object initial-k:qutwlmb +i und29/aj7 z k6w;kd) xly 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 is fire,/vve om,4j1z: yhha.fo3)u va7 dyfkd into a 1.00-kg block at rest. The bullet emerges (the bulle,fj )3fdvak.mv/v ,eh7oy hz4yua1: ot 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 o jdqfu5.p/z6ab 6-j b(which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is comple5-dj6pjob uq/z.6a bftely elastic, what speed will the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball movingwsp-8 h;o0:qo am hi+x +10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after th m;oai0how:xphq+ 8-se collision?

A ball of mass 400 g moving toward rvrc e2d9ny 2 6;l*j ;cw6zagk;v2cvlthe east with a speed of 3.70 m/s collides head-on with a 200 g ball sittiwnd6v g9c ralv;6jzyek *cr; 2;c22lvng at rest. The collision 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 speed oflqhf3zftbe; )) (ti(c(3yt(jcaw1 em 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly()(1 f3t( l3ztmeb);qy htca(ijecfw inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on in4/hjs i/f)x4s +fuuc r a perfectly inelastic collisionh/ ) c /sf44uf+jsxiru with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveliy+ +arvv1ez;xl qo*x 1ng with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lockl za1o*+ x+1qryv;vxe together in this head-on 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 isbjyu+s7p3b4i -ks ) da8fkx) tself in a 2.4-kg block of wood a rest directly ab +ub)k4 sbfsiyj p)k87ax3-dsove 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 kmodx)rl97we i3xu0n n6/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after thn 7u096o)nrdx w lex3ie collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collide-o*sb :*jufb xt6q:wus with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togej :usq*t* b xw-:6oufbther after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level fr*rzb4ra7 5n smn:s1ypictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfec4ysp *rnam: s1b7rz5 ntly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North )lp;np bc;9k gwith 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 g;bp9k c); nlpthe velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the or,u/3pmpjk0oub98u 1y84xq fwmr-q whigin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the cen q fru18pj /pubw08ox-wq,y9 m4kuh3 mter of mass on the x-axis?

  The center of mass of a two-particle system is a3( ae tckqsy18t the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is thekqy 3ect1s(8 a location of the second mass of 3.0 kg?

  Three masses are positioned as follows:r)+)nv dx6ictyoh 8 c* 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.)cv *o6chxn8)ir+ yd t0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are j/o n6g 0aw1molocated at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m)n1jo a 0/mowg6, respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.qxuq 01-qghhchej*o96p um.80e+ sko 0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center oqc soghq .j9e61qm0*-x o8uh0p+hue kf mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the pozi y8g. q da*f6ov7h4psition of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m tall.8gzafph67*ovd4 y iq.