What is the SI unit n1 aeaeuns 7j25r26c. aj0ioyof momentum?

  When a cannon fires a cannonball, the cannon will recoil backward because t1:v 7yrbtkzz7t tjs7,he

  A freight car moves along a frictionless level railroad trcrx 2b lo9.2kv7nuqy.ack at constant speed. The car is open on top. roqc.l vk72ybu. x92n A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sle7sgg1l4bjjl;1en n -v cn /7z.mtpr/ld while sledding on frictionless ice. What happens to thtz7 1lmg;vn1jgel4nbr-7/.jc pnsl / e velocity of the sled?

  A rubber ball and a lump of putsxf. *s 9chm:-phu.s jvqf* u0f/e6 cwty 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 grsfh/j-cvhqw60xe s * *9upcm ufs ..f:eater momentum change?

  A sailboat of mass m is moving wixe/,- us pvsl;y+p+p1j ie/nfth a momentum p. How would you represent its kinetic energy in terms lx py +eus/e;pvpin,+f-/1s j of these two quantities?

  If you pitch a baseball with twice the kineti qhft-(ruh6 6v8v ro-lgi e-z(c energy you gave it in the previous pitch, the mfz-(6qghe v8hv6ru-t(o -i rlagnitude of its momentum is

State Newton's second law h ja;xcj0.6o win terms of momentum.

State the law of conservation qz(*a h :tz6oeof momentum.

  The area under the curve on a Forc7r kk.m .u9uwp(ew;f ,ks ,kjne versus time (F vs. t) graph represents

  Which of the following is anfh e s+b7qti1; accurate statement?

  A small car meshes with a large truck in a head-on collision. Which of the auyx2g )rvq gbfr3-9z48 lg6tfollowing statements concerning the magnitude of the average collision83ggv uf9rxqy gt zrb2-al)64 force is correct?

  Two equal mass balls (m m6it :gud+bo:15hgs one red and the other blue) are dropped from the same height, and rebound off the floor. The red ball reutobm 6hgd+1:gm: i 5sbounds 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 o7oqbe((f ob; zf 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 to the east. Which object experiences the greater magnitudeoe ; obzb(7qf( impulse during the collision?

  Two objects collide and bounce off each other. Liiak8k ny48 2lta9bmhgnc 675xf* 4eflnear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collideiac.:n b8ltk ;s head-on with a 6.0-kg object maikc: ;btln.8 oving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles hed3.forw)lra(nca.hn* (y0 e ,thd :vzad-on an 80-kg halfback rdn3 haryar(do:v,ew * hl.cf.(t) nz0 unning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum isw kd an2oi q1v7;v4zm 8 a;h9uxx1ntz4(t 0dls conserved, then which of the following sxao;uhz 7; 2s a n0v1d 9k4wx(t4lvi8zqnmt1dtatements is true about kinetic energy?

  When is kinetic energy consn)3 xd(nim x:merved?

  In a game of pool, the white cue ball8 c4b i(7lmpll hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collision l(8b4 7clim lpis

  When a light beach ball rolling wfi *2s.qn7 (buvo *sjbith a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximatevjs bsq*b fo(n*72u.i ly,

  A golf ball traveling 3.0 m/s to the right -kr-yi kilr qz8*ja/ z y/8c7wcollides 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 im kqyrz/- a iyjli8c r*7-k/w8zmediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elas 2avt8xys mg+dl wg7;*tically with an identical ball at rest. Wha y+8mdgvw al7g2 *xs;tt is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very ligh+:oo jsmg0al 5t object at rest. The collision is elastic, and there is no friction. The heavy object barely slowo l smao5j+g0:s down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides head-on dn - 9ioln0s.cp 9sc2lwith a very heavy object at rest, in a9s2nlsci- lp.0n doc 9 frictionless environment. The collision is 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-on with a yemv +i9 jv;wfs ,m3dm+cllow ball of equal mass moving with a velocity of -2.0 m/s. What is thj,+vmw 9sfd+v3cm;m ie velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very light vf4:;c3 rt oncobject moving with velocity -v. The collision is elastic, and there is no friction3v4cn:o;ft cr . The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collqh :2zghaa )v6ision, if the momentum is conserved, then which of the following statements is true about kineticagva z:hh )2q6 energy?

  Two objects collide and st8ofm1 eh.n xzh8y / :5n)sszu6adv;irick together. Kinetic energy

  A 3.0-kg object moves t9/zfc5) hqhp ao the right at 4.0 m/s. It collides in a perfectly inelastic p9)a/ 5q zhfhccollision 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 object and sticv*c6 6 pgn v;-oomclq-eyg;/cks. Which object experiences the larger magnitude of momeo;c m *vc;gey /6go-vlc-q6pn ntum change?

  In a game of pool, the white cue /z qahct8r*nq4 .atx6p*z hh+ 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. Which of the following statements istc z7ys) p.* lk:vhe5o falsple*7yv z:hk5cs .)toe?

  Which of the following is a false5xe ha/b1m .,abogi/ yh8mg u. statement?

  Tightrope walkers walk with a long flexok9dnv 1qeq-a*- ydx /n)+mtgible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitfyq+9lnt jx 5)zbov2; ting the ground. Neglecting air resistance, the center of mass of the bomb fo 5jfb2tzx+)q9lvy; nragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collt g 3oclif/(o;vg;hm1ision was completely ivhoig3 (mft l;og/1c ;nelastic and 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 law for a system of 0tbtimyio n 94+al; *wparticles.

  What is the momentum of a 2000-kg truck traveling atg6gm9tk +soq 9 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. W fdtew4;3o6,h v hn.exhat is the magnitude of its momentx.ew6d ,n;hoh fev34tum?

  A ball of mass 0.10 kg is droppe93 2qw7rxe w dqk(6 reifk/6lpd from a height of 12 m. Its momentum when it strikes i7k/fxw6le (wq2k6qrd 3p9 erthe ground is

  Two identical 1500-kg cars are moving perpendicular to eac ao5immvm* ;4bh other. One moves with a speed of 25 m/s due north and the other 5mmbv oma*;i4moves 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/s, 2 lnv2bjbxjw, 7g0s7 hstrikes a wall and rebounds at 27l,j2v bjw sgbn0h7 x24 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 str4flir o u,hc3-icj15 uuck by a racket causing it to rebound in the opposite direction at a speed ofj- lo,ruuii 3ch54 1cf 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (ev0gmz k9:e*r ryy +ugxt(umav y:p9f7o8pe /-xcluding 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 recoiuxvmo(g tf /e v9kerpy8y0g+:-7zm a:y 9*rup l speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is statileo : -qtrs0+) qv*pjhonary when the tether line breaks. As a means of returnin: ) h*qleto+rps 0qj-vg 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 head-on a large object at restqzx 5)z9t15hyg q ifl7. The small 9zq7ztly fh5gixq)15 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 at o.wn pejue/d3c,tth,2l;u u9 4.0 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 together?u,2/e c ot h;pwu3ljnudt9e,.

  A car of mass 1000 kg moves to the right along a level, straight road at a speed vw +eq -*r4u;tvd+ j c4id5v6yeyhzd5 of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kgd *+ whr d+ ty5vjidce4 4eqvyuzv-56;. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that h0pjmcn 3 5+qafkit,6xas a mass of 1500 kg and they stick j mk+fat 3nx,p06c qi5together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 j6w7cvx0 s;n c;rf g q4cco9*ekg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with ;x4 *0c6s9o ecwg;c7vc rnqjfa 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 negligiblenu2sk1/ga ,ig 2xy96emilm * x friction on a horizontal track wil2g2mm*ieuis 1 axn g,/xk6y9th 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 after this happens?

  A 60-kg person walks ap)uk4dh mm v3/6;z p.h uvq2xon a 100-kg log at the rate of 0.80 m/s (with respect to th42khp /qauvmz p3d) .u6m; hvxe log). With what 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 suddenly increaso8 g:26zpp rvfes to 15 N and acts for one more second. What impulse was imparted by these forces to the objepfg 2p:z8ro6 vct?

  A constant 9.0-N net force acts for 2.0 s; mjv 0*bn xsqs1s;de ul:nis)+ da*u+ on a 6.0-kg object. What is the object's change of xq s*u;dmns +iel0u v:bs*sadnj;1)+velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall an +w 1v3yh c;geri6:fckd comes to rest in 0.20 s. What is 6v+: fi h; yw1ccergk3the average force the car exerts on the wall?

  A 2.0-kg softball is j+j ;rs.g * htu2ocr8wpitched 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;h+t2gr*sr8c owju .j the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The x4wg ; oe,b43xh 4*sneuhuvy4speeds 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 touh;*4ov s3ebxxn44 y,hugw4ep 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, with a mu08 mum :v p ;ovbc)kt;trz0s(bzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on thmkt0)o v:bruvmbz8pst 0 (;c; e machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock the dogvgcjth y oth6ath1e:b 60a 8n,)-s3 yor 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, assuming the water doesn't bounce b : h,ts-vjht8yt6ea a6ghgo)031ycn back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. icp qm 4+n)gd : i7kckw3+en;h It falls 3.20 m to the ground w37k:d4n+ig epc; kciqmn+)h. Assuming the 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 of 40 m/s c qr7v fbs8qo1q a4qgss(9wn2+77fqr after 3.0 s, when fired straight up. What average thrust force d7rr9vsq7(nbqo24s1 q8 fqgsqa w c+7foes the rocket engine exert?

  Two astronauts, of mass riklm 1uj7;naaj+ /q5es 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation aftu1j+;alm/j 75i kqanr er the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the rightsbt,as(1t k2 a with a speed of 2.0 m/s. It collides in a perfectly elastic coltass1a(b ,k 2tlision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a ve-x.y5glizvs 3 locity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What i x i-3sv5.glzys the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. :ng:v3b 7ucsxThe bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block right after the collisivgxc37ub :s: non?

  A proton, of mass m, at rest, is struck head-on by an alpha-particcj usht 7:oc0;le (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is cohc:70sjuc;ot mpletely 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 collid-3tnlmuw8k3q 1eqq,q ihx82q es head-on with a stationary ball of mass 100 g. tq8 e-,8qimxqq1l w33u nkq2hThe collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east p2fnf 5 er(x/ j n*zea980gb.t6sbqy wwith a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The colliyg/. w b t9z28efxp (*asfqrn0ej 65nbsion 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 he:a:q3c1 n4om mk c*-qpieyaz5ad-on with a 3.0 kg mass at rest. If the collision is perfectly in4oqe :c -zamm1* yicqkn:35a pelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east a* 7ierp7sz(31byv)mef o rxr/ t a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?b)7xrr/y7eprfm(ie *v31so z

  A car of mass m, traveling with a mxtz ,r5potbjj:(n l*gwz:/sa gp;. :c9z l 4svelocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction ofl*z(/mg, s5b o;9 tar.j:nxjp c slzp:z:4g wt the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 2.4-.j)7z w u/fqos4jpos/ a1pn/lkg block of wood a rest directly above it. f 1pojps sn)7zualoq jw///.4As 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 cwbn)r2w8d*+)v*dmeg o8x j5qd 2 dfj3000-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 of the cars aftm5 qbcddf* wd))o+ 8w *drex822vjjnger collision?

  A 1500-kg car travelpm:n+ge 6tnpdfa *5 *ving 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 directio*vpp+n*df 5mentg a6:n of motion of the cars after collision?

  Two objects move on a level f/rl d c5l3d w 8c9ri2whnmt(;irictionless 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 collii8rntl wwhmcd; 2c3(5 /r9dlision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the No di0ngcp1*w yp+do ml /nz*82drth with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west wity8pgmdodzw c0pd **2n+l1n /ih 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, and a 10.0-kg mass sits at x ) w -wx,wabfra.on/c,,ijz*a= + 21.0 m. Where is the centecxb iwf ,az,-/).ow,jawa *rnr of mass on the x-axis?

  The center of mass of a two-particle system is at the oriu ho fr2873pfk+evle.gin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the locati o3ef .p87 hv2frelk+uon of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0ni*ce8+u(q iv kg at (2.0, 0), and 4( q+*iuv8 eicn.0 kg 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, 1.0 m),, yc;tq(lp jgh1n*z(x and (2.0 m, -2.0 m), respectively. What is the location jp nlg*,c yq (t;x(1hzof 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 pt7.i;plwg tv:+ w8hms4 rl- :lgqsje+ositioned 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 masses being located at the origin, (0, 0)?+tj gsl;+-w.ewlpm ti h qrls4::7v8g

  Use Table 7-1 to calculate the position of the CM of a whole leg including lqf pqr/1(iqmr 4w w1.the foot when the leg is stretched straight out. Assume thqqpw 4.(1 l1wf/ mqrrie person is 1.60 m tall.