What is the SI unit of momentum?v1pnlaj t0u- (

  When a cannon fires a cannonball, the cannon will recoilbl33lc ok:j59ybtx :l backward because the

  A freight car moves along a frictionless levej/ jzh hha:*50 glghaji-5 h*wl railroad track at constant speed. The car is open on top. A large load of coal is s 0ghh:jhhh /*w5ijjg*za5a l-uddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice q5cba57r 7r;pp egq5u5ty iu.ehs.m+. What happens to the velocity of ther+7eu7pp gm.5 aehy .c5bq;srqu t5i5 sled?

  A rubber ball and a lump tr8eqh- o g2p)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 momentutr2p 8o)ghe- qm change?

  A sailboat of mass m is moving with a momentum p. kev *4n2icm1u 2tc9kmHow would you represent its kinetic energy in terms of thet n cek24c1mki 29*vumse two quantities?

  If you pitch a baseball with twice the kinetic,7fked. nnjr9 rf f1/c energy you gave it in the previous pitch, the magnitude of its momentum in7f 1f cndr, r9f/ke.js

State Newton's second law in t)n-*w s, ebkfterms of momentum.

State the law of conservatiff vrnow(x1y 4.,w0 pion of momentum.

  The area under the curve on a Force versus time (F vss x:vd(b9 c2qp;l wi9l. t) graph represents

  Which of the following is an accurate 8h7juu;qc mxu(v v9u( +pfcr+statement?

  A small car meshes with a large truck in a head-xvuy32,l,ppzk/ kw r8on collision. Which of the following statements concul3,x 2,zwpvk8yk p/ rerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and thez/ju;hul*k .s; nhpz+su 0*jt other blue) are dropped from the same height, and rebound off the floor. The red ball rebo;;ukp*+huj.s0 t *nuzz/l js hunds 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 eas4-i7ob4mklf;i rn y (4wtl;t rt 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 balrl7;by4- tfk mo4tliw4 n(ir; l moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off e7 pzavtbdn 51*ach other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. e6; ,7 4bqs)is ;eqjc gbcfq;iz+n;fuIt collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is cof,4b b e7j)u+;6;ccqq nfe s;gi;siqzrrect?

  A 100-kg football linebackbr33 jn lmce 9i+gjy4 b dbd8ku*k6k;8er moving at 2.0 m/s tackles head-on an 80-kg halfback runninkk ;33ykubei bn8c64l9+ b *rjmddg8 jg
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, ifg(*l9)h0l w wsgu411b l sjibe the momentum is conserved, then which of the following statements is true about kinetic energ)e(gjshw lb04is 1llgw91u* b y?

  When is kinetic energg- x:sxg.+mv h7 +. bx/jk:fja0cuw lfy conserved?

  In a game of pool, the white cue ball i/uw )hi0y /idhits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originall/w i i0hd)/yuiy. The type of collision is

  When a light beach ball rolling with a speed kmy,+u.z cew*0e10a s peg z,hof 6.0 m/s collides with a heavy exercise ball at rest, the beachkszue0+ zc 1 eea m,0h.yp,gw* ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on coll56objrss, 6z t *af xq-vv9;rmision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly s6oxb6m* 9vr5qtfr, jz av;s- elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collidesz:8lq1r:xice.a btk 6y -2ddq head-on elastically with an identical ball at rest. What is : 1clx 6-dzd8k q:r2qety.ibathe speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v colld ogi zhp iw9,/yi)8-lides head-on with a very light object athiwlz/ io 8 gd,9)-piy rest. 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 collision?

  A very light object moving with speed v c jt:pg+cxze 3 00y s)g*r6flniollides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly 6 gzsi gxp3c 0ejt+)rfny 0*:lelastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collid*ear t(b;sa 5ies head-on with a yellow ball of equal mass moving with s(t a;arei* b5a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very lkjx, m8v+j a9olv98hqight object moving with velocity -vv +j8mq ,x8vla9 oh9jk. 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 collision?

  In an inelastic collision,s/-/ 61tbg no vpmfwm: if the momentum is conserved, then which of the following statements is t/ mmv/tb fsn-og1:6wprue about kinetic energy?

  Two objects collide and stick togej23ceoe1/vg3wmvj0bw )t1 x-lg,yvy ther. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfep0b+(b hb4jm-brgqc9 .4tr w9d l,rluctly inelastic collision h.b 0c49l r-+b(prbb4j mlt, dur9qwgwith 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 objs wr,ih3l6+bcf kiayyy.07 *wect and sticks. Which object experiences the larger magnitude of momentwc+ yak*yi3i67lw0f y.s , brhum change?

  In a game of pool, the white cue ball(gexz1q:x7qg 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 of-vq nb*i w+n3v the following statements is falsev+*nb iw3-nq v?

  Which of the following is a false statement9hge :t mi/*h patt a*y:ez pp3m36q9j?

  Tightrope walkers walk with a long flexible c,(9mql m apsk4ho 4o/rod in order to

  A plane, flying horizontally, relepi;0ry bf2k xk8 s;-ij d x4qq(r-mcn/ases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosio42-/ dkisx-0p;fmrjb kyrxn;q c q( 8in

  Two cars collide head-on on a level friction-free road. The collisjns i /p4q,bz+ion was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity ofqipb j+s,4z /n this system's center of mass?

State Newton's second law for a s- h0 y/bv fmbm sm;vcn b(r*0tw4(er4wystem of particles.

  What is the momentum of a o w):w:k4fgca2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What i3b ,t qeskej89s the magnitude of its momentume jsbek983t, q?

  A ball of mass 0.10 kg is dropped from a height of 12 m. bmuak/bb.w*,8x7 ng6cp u 7qb Its momentum when it strikes the grnk*bbubp7wcu.6 g7, q8xa b/m ound is

  Two identical 1500-kg cars are movi lp1 x2jef v1ydnd,15wng perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 2jy 1edx15wv1 , dnpfl15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizob6q, n5i silv*.b,s ry;:fcsf ntally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in s 5i;r*:c,,.vybsflb q f6si nthe momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 bbc)f e.pk/1r m/s, is struck by a racket causing it to rebound in the oppo bcp1)f brk./esite 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 placed on a frozb(mb8.y0o o k r18-q quwzgxsq1 9cxb*en 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? (Assume negligible frictio q98 w0 cm q811*(xqz-u.brogbsxbkyon.)

  A 70-kg astronaut is space-walking outside the sp03 +mhg vazu0sace capsule and is stationary when the tether line br 3s+ zhag0v0mueaks. 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 5.0 kgm/s approaches he sp p-3;m,wlbpad-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the larg bmp-l;s3 pw,pe object's momentum change?

  You (50-kg mass) skate on ice at 4.0u..qi+jd8mg i m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off togethei jgmd+u.q8i .r?

  A car of mass 1000 kg moves to the right along a level, straight r7akd,fxzbf) 8 oad at a speed of 6.0 m/s. It collides directly wk)dba8xf ,7z fith a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m+ 7pbhr7esz)d/s runs into the rear of a stopped car that has a mass of 1hb+ s7dr7 zpe)500 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 al)/ btzzlo,1sgong 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 speed of the two cars after coupzoz)t,/ 1s glbling?

  A railroad car, of mass 200 kg, rolls with negligible frict6 tg;:0w8.z8vyrypi f+w2vbrg (vdsc ion 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 thew6z (.2br pi s8r;ywf +dgy:tvg0vv8c 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 respec 9xa s64ls4trgt to the log). With ws a44xt6l rgs9hat speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenloqy5jq5 9r0wm5 8mmm iy increases to 15 N and acts for one more second. What impulse was imparted by these forces to the object5mi0q5m 8oqm9 w5myrj?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. Whxm 2fmovt/a1uga0,7deag - e3at is the object's change of vel g-x3avfo, 12amm0 t/e uaegd7ocity?

  A 2000-kg car, traveling to the right at 30 m/s, col;*js3ss: xwzb dn uve/- p2s0qlides with a brick wall and comes to rest in 0.20x e*:dzs 0- b3vu;ss2jqswpn/ s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You h4t+9 ebkl:7z q rw,jotit the ball back along the same path, and at the same speed. If the bat was in contact with the balbt4z+owk9l :je ,qr7 tl 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. Theoop,;wbnt )i sq52l:g7 m)qkt 2pl 6au speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respective7k;)o2t6b wq)oi pa5u glp qlm, st2:nly. 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?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, w.zgww7ek(qr)7unf( k. j;l3 *wcpabi8b ar+u ith a muzzle velocity of 750 m/s, at the rate of 300 rounds pe77r zqk *(.in.f(gku;raa8)b w c j+buwl3 wper minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to kn9ym r*gdo2 )p,dyf jq+ock the door down. This requires a force o,p*r mqog+fy29jdyd)f 1000 N. If the hose delivers 40 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 r8b1jhy2.)az1 pn zpa rate of 120 kg per minute. It falls 3.20a1aj)rb 81h.pyz pnz2 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, ah ha43jawk gt41(l8zk chieves a velocity of 40 m/s after 3.0 s, when fired stj hkg8l t1hwaz4k 4(a3raight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially nwfo29qhm ; p6at rest in outer space. They push each other apart. What is their separati9pof6 n;hwq2m on after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2cw)8 1y 3xl whxd3 258fzt3pd sdf(gvm.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to th15y xd32vcmlht 3w)x3 s(w8z8f dgdpfe 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 the +x dirwg,5cs s 3c8qofcq(: vwub*hk.9wi 7fection makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg obf:,57i8w9wc qco .c gbh3 vf*su(sqkwject after collision?

  A 10.0-g bullet moving at 300 m/s is fire/c ur+zp7f )zqd 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 is the velocity of t/ u zr7+cf)pqzhe block right after the collision?

  A proton, of mass m, at rest, is struck head-on b)um0 / )xljg3yh63ynvpp1 e1dpiu e4 vy an alpha-particle (which consists of 2 protons and 2 neutrons) movin1 )) epnmhvu0 xp4 /6pydegl 3j13uviyg 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's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of n8ao5 l,i /yuyjgu;; xmass 100 g. The collision is elastic. What is the speed of each ball immediately after the colli 8gxyyo ;/j auu,i5nl;sion?

A ball of mass 400 g moving toward the east with a speed of 3.70 m -3 j(t2hq+tugsj sh(z/s collides head-on with a 200 g ball sittintus( 2-t+(h jqzs3hj gg 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 g:vu , ,mej.(c vflet6a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision isj:m .ec,t,evv(gfu6l perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the ea68/y7 bf 3yrspd:(v kajk(kufst at a speed of 4.0 m/s collides head-on in a perfekk67yvj8 / k:3pbf(fuyasdr( ctly 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, stjg 2.r;dxum+08 c8w2kozxrd yrikes a parked station wagon, who's mass is 2m. The bumpers lock trj2w mxxd cg02u;d.o8k+8zyr ogether 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 itsel 2m3n8wabnl e2f in a 2.4-kg block of wood a rest directly above it. As a 2nm8nlba3we2 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 travelz jjznq*/nf- s: ;(iwcing at 90.0 km/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 speed/fc-s*:w;j qznj( nzi of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000oj/)w br;av v:-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 v/ :jrawv);b oafter collision?

  Two objects move on a level frictionless surface. Obj6pq0)glr: uno ect 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. l u0ognq)r6p: What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 e41n ;7dt:pn yipgxx(0dt ,on 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? (Neg1tx4tnen xg o n;7d,pd0p:yi (lect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = + 21.0 m.9lv dxkf lm00-lui .kfhx5 c9c.0za ;g Where iu vfk.0ci kdz9m5 . fhx lxlc90-l;a0gs the center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particls9qtz5tp, a2ye is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the lo,29zqa pyst5t cation of the second mass of 3.0 kg?

  Three masses are positione948r)1lb zhjgu7z ate3 ij: bzd as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 tj 7ueb1ahizlj:83b rg 94)zzkg 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 located at (0, 0), (1.0 m, y5 :rvwvjmm-w l-dc+91.0 m), and (2.0 m, -2.0 m),+9 :-vrm- jlcdmywv5w 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 posit09:r9ewage odmno4 :nioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center m9warn9 g:d: 0one4oe of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the lz; t3w cr ;o*p7 :)i+/tqerpg8ntl cjposition of the CM of a whole leg including the foot when the leg is strerc/t)tl*eo+r cq3t87;n ;lzw:ij ppgtched straight out. Assume the person is 1.60 m tall.