What is the SI unit of momewdu6b c(ej9 t3ntum?

  When a cannon fires a cannonball, the cannon will recoil backwaroy; zt9 fbk7em6fpy40cvd: k )d because the

  A freight car moves along a frictionless level railroad tracnknq2/uszb7: 2dq 0jpk at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. Whkz d7n q:jubq/02p2sn at happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictnxuo)* t xp9k)ionless ice. What happens to the velocity oox* nupxt9))k f the sled?

  A rubber ball and a lump of putty have e9up7ikp zn e,,n7vld; qual mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which i p79,nunke; vp 7lzd,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 worpgq cp;sr) a kx906iz0c8/ayuld you represent its kinetic energy r0qpc;c/90yskaxza ) 6gri p8in terms of these two quantities?

  If you pitch a baseball with twice the kinet e9n:i.c5xl riic energy you gave it in the previous pitchc:iex .i5lr9n , the magnitude of its momentum is

State Newton's second law in terms of mom p w rxm-z3 s+e:kv4,5hkukr/lentum.

State the law of conservation of m1ypa0fl :f eb/omentum.

  The area under the curve on a Force versus time (F vsgh w0g3ldme.e: pxif3 j5h:j 0. t) graph represents

  Which of the following is an aa-42kf l cljx9ccurate statement?

  A small car meshes with a larg5+7 1hx boe9p/tbj6ita im:k xe truck in a head-on collision. Which of the follow/jt pi ob7x1 +hxakb:e 9t65miing statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue)c+ 5cem8l9fa r2e2kk l are dropped 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 r mla2cl+2f e8kk95ecof impulse during its collision with the floor?

  A Ping-Pong ball movk5os,/o* yfb8 rxe d0oing east 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 slf8obdk5sro/x*oe 0,y owly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide andb:). k8u wn ngsga:4f l4nls.g bounce off each other. Linear momentum

  A 3.0-kg object moves rsw) -*8(n0u7ip ue;lomxwp; +lwzjr to the right at 4.0 m/s. It collides head-on with a 6.0-kg objectz ls; *uoej r+w8mrx i(uw)p0-7pn;wl moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfbac:n zs1+,fvcq lk runnin c,qflv 1:szn+g
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of thj /ugycz/ln(j91n4 pqe following statements is true about kineti c(u /4 19yjlq/nzpgjnc energy?

  When is kinetic energ;cpo+ 5ludli0 h0f,1vrg.:ar.e hoyky conserved?

  In a game of pool, the white cue ball hits the #5 ball and sto7ghk +s3*6-sy mkxvk lps, while the #5 ball moves away with the same velocity as the cue ball had originally. The v sk 3+76khym *slgxk-type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with,s79uor8 mjq q a heavy exercise ball at rest, the beach ball's speed after the collision will be, approxiq97msjq,ou r 8mately,

  A golf ball traveling 3.0 m/s to the xi :wj2j3bjw453qlhy k+xg s) right collides in a head-on collision with a stationary bowling ball in a f2y:s4gl wq5hi)jj 3x3jbxkw +riction-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 of 5.0 m/s col8idijpwp 21,c- :lqb klides head-on elastically with an identical ball at rest. Ww bqj dkpi-i 18p:l2c,hat is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v cow8x 9s 1z: xu)e5ismdwllides head-on with a very light object at rest. The collision is elastic, w1ues9w5sx)8d: x m ziand 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 with7 ,ca uuy+tihim(1f7xm18xfv a very heavy object at rest, in a frictionless environment. The collision vfy7xuitm +a m1 x,1fi87ch(uis almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head--pli,t3k rl js)fzk0 3j))ow son with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What islk3 wkzo,r0j )il3)tsp s- f)j the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very lig 8hqso/ q2t38n-nljb o a;vz,rht object moving with velocity -v. The collision is elastic, and there is no f/o8 stjzqon3,-banq8;2r vl hriction. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momeyb;( fh5 tva3 j9 (c2yyllitr2ntum is conserved, then which of the following2it(y5acjlf9hvr t;l2 (y yb3 statements is true about kinetic energy?

  Two objects collide a ssx5)weudj 5pm- .2:4eeh cbend stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfe/y v(j,nk /2r ygs-eppctly inelastic colpep ,-/n2sjy/ v(ygrk lision 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 bctule07v7:x -igq.m large object and sticks. Which object experiences the larger magnitude of mo7le0 q7:u-.vc bm tgixmentum change?

  In a game of pool, the white cue ball hibano r)i0ov( yy8)d 9dts 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. Wt9v *l cc,ci9v4rlx2n2i l ii1hich of the following statements is false,9 x*ci lir14li t vn22lvicc9?

  Which of the following is a falo0 h -npt();9-vxk/, o qhe rxglgji1kse statement?

  Tightrope walkers walk withx*c4l 23nmhg z a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explojb0ls:ts a2ki(-x v0ldes before hitting the ground. Neglecting air resistance, the is:al js0kl ( tv2bx0-center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The c7mc fwf)+vjz+mnc6yfdl5e5 n x9*kv: ollision was completely inelastic and both cars quickly came to rest during the collision. W*x7nf5f+ wmf6e lzd:cym )cjnk v9v5+hat is true about the velocity of this system's center of mass?

State Newton's second law for a system of par,an (8v0yrquvticles.

  What is the momentum of a 20y5p2p niljt6 1pr vt *hok70;p00-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving souo qlsc,5 q,496v/a j;*nxejh9mri bfzth at 20 m/s. What is the magnitude of its momentu jsi,xj9aq ,m45/b z9 fo;hcner*ql6vm?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum-+k-*n4y vgvre e/ ato when it strikesyv-t4 a*vkoern -+/ge the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wit(pvs) eaw3e)a h a speed of 25 m/s due north and the other moves ape ))a (e3wvsat 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/s, strikes a wrv v7z04 mr8/ctv ob 9milbmvsy5*)t*all and rebounds at 24 m/s. What is the change in the momentur m 7)v/ 5*s*zmm8vtvi4y bt9v 0blocrm of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, im 9je* mq uke;)la1n.os struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the b;1oeq .*l )m ej9amknuall?

  A 50-kg pitching machine (excluding the baseball7dwg1eknmfe b5v gj (vs9q*;0) is placed on a frozen pond. The machine fires a 0.40-kg basebaf(ewm vggs9*v710jed 5kq n b;ll 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 space-walking outsidok6z u )c;xzf+,vjem:e the space capsule 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 zve:;z) o+u fkcm,6xjspeed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-o9d v/qm6jmugqz )id 4u59k-bs5cw dx(n a large object at rest. The ssddbq49wdx) u5mz-jgvuk/ (q5 9m 6ci mall object bounces 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 /b1u1zm4 d7x7rv+xu sal73xj zm6 mkfat 4.0 m/s to greet your friend (40-kg mass), who is standing still, with op s7vxm71u6/bjfz zrd13x u l m74amk+xen arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg mejax2 vlrt( 0 +rf6bl+oves to the right along a level, straight road at a speed of 6.0 m/s. Ijvat+0 2bxrfe6l (lr+t collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car travelic4u b(jy1g:f*:f s exlng at 25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after thelg esffbc*y u(:1j:x4 collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level track i - -pt:p)yo0zo5bnrzat a speed of 2.0 m/s. It colli0)zor on- 5pp by:-ztides 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, rolls with negligible frih s zlak 6hf*88sc-xf;ction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distank-az86ff*h8h; sscxl ce of 4.0 m, and lands in the car. How fast will the car be moving after this happens?

  A 60-kg person walks / u enpnee-ci+ ti:9u5i-8bjf on a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does:+f -5upuini/i- btn8 jc9ee e the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. Theuc+;lu 5n m 1eq+gunzf b28x v0hqju/i 4a.x+a force suddenly increases to 15 N and acts for one more second+.hx2muavq4jc 5u;ziex +a80uf/gq1 nn bu+l. What impulse 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 onipoboo-q +f * lh 0xsk*;om/2bject. What is the object's cho o*/hpn+q0xlbok f*io2; sm -ange of velocity?

  A 2000-kg car, traveli 0d ,c-(3nz- +r9gjuoen8lyzk7lwk xe ng to the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the wal knclzg8-e -9(7le3xk y+ u0 wjzd,rnol?

  A 2.0-kg softball is pitched to you unb fn7oe1ss(9lo/1 f at 20 m/s. You hit the ball back along the samefnno1 o 7e us(l9s/bf1 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 dropp/s0 dm9r -edq+sc uwx1ed onto 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 forqdcrm+s we-u19 /s0xdce exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muzjs wj79e +qvm03vqc0czle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machin+0s cqm709jwq cjv3vee gun mount?

  A fire hose is turned on uv*lmkjxbj)+55dy/h 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 / u5kvjyh*x)l+j5 m dbper second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horiz8nx8 )rho iewc/ -w x6m(yc 3f;eoytr(ontal drainpipe 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 does it exe;yex nx/ reco fm8yt)iw-w( (3cor8h6rt on the ground?

  A toy rocket, of mass 0.12 kg, achieve:pn*:m.xgvx u* kmzv iq /k-2ts a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engivp*.it:*nk/kg:2 xx- mzumv q ne exert?

  Two astronauts, of masses 60 kg and 80 kg, are iee a ;kvtt u9(+5brpy:nitially at rest in outer space. They push each other apart.trp(euab5 kv;9+ y: et What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 21bc9eup0 lfz xv1ic4 ke0:zg zm//5al.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 after the cl z iek5l m/4vzefxcp0:19ua1/ zgc0bollision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a head-ohb.u1 o.x5gkz u,exb9n elastic collision with a 0.15 kg object initially at 9xg 1bheu5 ubk.zox., 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 fibo,z46 : o(v 7tfehyo 1xzfxi,red 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 f,t41e ,zo( o:fzobxi6 v 7hxythe velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-pcz* l-,9uqb uyarticle (which consists of 2 protons and by*l-uq,cz9 u 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's mass.)

  A 50-gram ball moving +10 m/s collides head-on wbeo* e 9;zxzc8l1ab6.cid9t yith a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the co e ted8a 9*.z9xc1cboy bi6l;zllision?

A ball of mass 400 g moving 1,30ys5zqojb dxrol+x12 rl i toward the east with a speed of 3.70 m/s collides head-on wo0zsr l,1 2xdli q1+bjo5rx y3ith a 200 g ball sitting 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 of 5.0 m/s. It collides head-on with o:r9 -ihsv c/gt, :veg1 o.boxa 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses afoc:,t :vbe .g/sxrh1voo-i9 gter the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on in a z7* bffnrwcmri9 t12u8 wb5u/perfectly inelastic collib tbwwfc 2ufz57i98n1r/mu*r sion with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, travelingmwmz82 x 2ej*g with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together inmz2ej 28 xmw*g 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 ae7 qvva/p21 72nahgkz vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertically upwarvz 71haevan p 2qgk7/2d.
(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 travelig4x* h.0teweung at 90.0 km/h east collides with a 3000-kg car traveling at 60eu teg*w h.40x.0 km/h south. The two cars stick together after the 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 cy-9 ;cg q3,g,vylexchvm mu17 ollides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.)mvc37 ,-c y ; 9ygqvx,u1emlhg What is the direction of motion of the cars after collision?

  Two objects move on a level s.ywm3 z7klo3 frictionless surface. Object A moves east with a momentum of 24 kgm/s. Objectysmk.zo l7 w33 B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving towar878vbos nlq11 m,yqkm d the North with a velocity of 4.0 m/s.17m vkqq,81s moyn8 bl 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 air friction.)

  A 4.00-kg mass sits at the origin, ann0+ ybk;l0m 3m/gjk kbd a 10.0-kg mass sits at x = + 21.0 m. Where imng+/lymk0j0k b kb;3s the center of mass on the x-axis?

  The center of mass of a two-particle system is at the or1pm)(utsv7, ik /q - nwczf.vdigin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the locati,1s/icmvdv(n)uwq kpf- 7 tz.on of the second mass of 3.0 kg?

  Three masses are positioned as folr2b(t03 oue g3 w ,9c9cuaqxlplows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). De wbo3eplau u93rg (0qc9,t2xctermine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2tigby2qwt 7r 3m+c3 ra ht)u*;.0 kg, and 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 of mass of the system?trmcyi3u+ g a2);t7 w htrq3b*

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kgvkd r4x7up3(l mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass rl(kv73x pd4 uof 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 w9ex9jl27bm6 pv n k2lahole leg including the foot when the leg is stretched stapbm e7nj92lxkv 9l 62raight out. Assume the person is 1.60 m tall.