99.36: What happens to the inertia of an object whenn.ye;*w5z fr.2z vcxe 4 scgca,92y jn its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend o .0i ihivca, efv v*bx09*:jqon the quantity of matter preseb . xvfhoj ei09av:*i0, v*iqcnt. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests q()rb6g bcp -gn.n 2f+ay )rbzon the surface of the Earth. Assume the Earth has mas 2gpy) n(bb.a n6zq)fc+brrg -s $5.98 \times 10^{24} \; kg$ and $g = 10\;m/s^{2}$ . What is the magnitude of the gravitational force that the boulder exerts on the Earth?

  09.12: A 5.0 kg spherip23s h x12bzee is in free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphes2 exh p31biz2re? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velociup1mz-e/v9 +8n m;7og b kxytd (*maflty to increase while its acceleration degfpe(mm1ua bndoz8*+k tyv;9/ 7lm x-creases?

  00.11: A certain parti . p3(d jb3vl*ilh ,4nt+hy(aqp-p ncjcle undergoes erratic motion. At every point in its motion, the direction dpn4. cpqyn-l pl3 h ,+3(bj(t *vhjaiof the particle’s momentum is ALWAYS

  17.14: A block is suspended in thez ekkoeo*.m fn2g/)p k9w0x*n air at the end of a string held by a person. The person pulls on the string uniformly accelerating the block f 2ozkwn. e*no 9p)e0g*xm/kk upward for a short time. During this time, which one of the following choices correctly identifies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the following situations is the net fo 0drs -.d:0hj0vza+ dyj1ghoxrce constantly zero on the object?j j.00dax dgh1osr:+ -0 yvzdh

  13.28: An object is in free fall close to the ground. A person intervenes apy s2:q qin. qmvot;18nd slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acceleration of the object as it is being stopped by the person? The magnitude of the object’s acceleration is a and the m.vm: yt;qs1q8 o q2ipnagnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 6 ozbb0yuj6*pk m;em: 50 N, and F3 of 70 N, ac6bp6ykmuo*0bj ezm; : ting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be c-m.mf 9cbf h ;wbvo24fombine to form a resultant with a magnitude of which of the ffcw m;-vf 9. h4bf2bmoollowing

  10.06: Which of the following sta4f/ny k j7wdx/: g+xq;k;d vvj5zh9f(ln b1 wxtements is most closely associated with Newton’s Thy 5;kb:9q jjgn7/ lx vkf1vxfw+wd(d4 nh;x/zird Law of Motion?

  95.06: The reaction fjhh.ehc 2xk6 cq/ +vs9orce does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. Th*5 /fdfk eo0 d/o.nhjppw4w1oe elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force f e*oj0.5nk dwh14/pw/pofd oacting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Which op g,-t0gxqq) j.qlnl.ne of tp lx0n .ql,-jg.qq)g the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. Thy/ifn,+ bs 4awgay s+3e batterswings and hits the ball. T +asanbiy,4wys+g3 f /he magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest oqv(6n,8qz3;v egvg asn a table. On top of the book is a calculator, alsoqgavv8z;q3v g e6n,( s at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physicse (56dzd:ndilwy.0k y I class were in lab conducting an experiment related to Newton's Second Lld(n di6z05dw yy .k:eaw. The collected data were displayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled wh,j80e y,mq sxhttc-)o337t nlr3 fv8t,ssg jrile at the same time the mass of the object was halved,then the acceleration tfes-sx,gct q mn8 j3ro3tyts7)8h vj0,3l,rof the object is

  96.15: A car whose mass is 1500 kg is acbgt i,t. bnwn6s)6 ro.c l7. vtsj0q8fcelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of thobs .r0,l 8wctb).fi6g. n6 7jtvqsnte net force accelerating the car is:

  99.05: A tractor-trailer tra li-m8cg4- irjz:/z puck is traveling down the road. The mass of the trailer m-4-p g/zz jiarcl8i: is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principle wgy2a+irei0004 xmhjs best explains why large tractor-trailer trucks generally accelerate mu0iimy0rg2x4 wh 0a+je ch more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws6vf-q /vcg5nwp;o kl2 a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsekn-;/2q w6ov vlg5cpfquent motion?

  00.13: An object near the surface of -3i7ebptpm+c the earth with a weight of 100 newtons is ab mc7p ei+3-tpccelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is a4 x na9a;.qmvjccelerated from rest by a constant force of 2400 N. What is the sp vja;n9m. 4qxaeed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4qsv/ne6- ;r1r gdu hx*.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. Ho;ruh6g 1/-nv srex qd*w far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0p(2k5v j ,zi/ gafuvj/ m across a rough horizontal floor before coming to rest. The coefficient of frict2j ziak,/v(5 v/ufjgp ion is:

  09.21: A 20.0 kg box remains at restx4hlaso.rr02p3w 8 wd;)m s1x cxkz v8 on a horizontal surface while a person pushes dirzwa.mskx81r83xo dsw4c2; xphr 0vl)ectly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the surface is $\mu_k$ = 0.20. The coefficient of static friction between the box and the surface is $\mu_s$ = 0.60. What is the magnitude of the force of friction acting on the box during the push?

  13.16: A block initial) ,ifjl+anu5* 4azjk m/odu* lly moving at 8 m/s accelerates uniformly to rest on a horizoja/uo*mj *5f+n,alzdk 4l u)intal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a speed v with its ;/u sz,)z7gma hw3w+iiv-lurbrakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the dryus izhmw,z3g 7-wv)uai +/;rl road is μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch of ice at a speed v wji ry p2b.bk-c6fpn-) ith its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetrb -cyni2fjp p6 b.-k)ic friction between the tires and the dry road is μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emergency stop w t9f5 5nnscssexjqftnq24f s, 405h+by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it st9 4nf2x 54s ,n55+tsh e fsqw0qjfnchad been traveling twice as fast?

  99.39: The driver of an automobile oqg (ey mb*; bibm+++gmust carefully control each of the following devices. Which omyboq(g ge++i* m+bb;f these devices can cause an acceleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocn) pac0m*- v ietxl;yfw q.r29ket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increaseq-it; wyr fnc9 axl2*v)0p.me the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person called Ted tpr13ymih 2y 3xq;st ;exerts a force T to the right on the box. A person called Mario exerts a force M to the left, which is half as large as the force T. Given that there is friction f and the box accelerates to the right, ran2 rx ht;yy;tp3i1q3 smk the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three rojdy3q3 r;b hc(ei,g t,ller coaster tracks of equal length. Assume th he,tyicjg(3 r3db,q;at on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart be traveling the fastest at the finish?

  02.28: The diagram below shows three roy))e)0pyluy (4t cbbh ller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevab)y 0p e(tbyy )c)4uhltion and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly along the curved track s4rpnz4s. meoop4zj9s0nbw548v9a l from point A to point C under the influence of gravity. What would be the dir.095ens4 sjo4 l r4pnb49ampov8wsz z ection of the cart's acceleration at point

  02.40: A box with a masb+ e ggbfs0:7ms of 50 kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient of kinetic friction between the box andf b+0ebm 7:sgg the floor if a 250 newton force on the rope is required to move the crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall by a 100 N z*qj1u3wt9+ 0d)mmkljhsqt2 force as shown. Thecoeffi3u kqjqwd0 zh +1*tm9ljt2)smcient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower acro5*g 5eledz*w yklb) 1i7vcs 7uss a horizontal patch of grass with a seb7 cwg5ezv ld17 y5iul )*k*constant speed by applying a force P. The arrows in the diagram correctly indicate the directions but not necessarily the magnitudes of the various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans againkju 6:l9 vc3m0odb5uj st a crate on a table. Neither is moving. Which of the following statements concerning this situation is C6b c:u3v0m5j9okd lj uORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is fv k3sv-abx 8r35ed;vpulled up a hill with an incre 85-r3f ;svxae3kdvb vasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?