99.36: What happens to the inertia of an object whenujxh 5te, .xw* ww,-je0bya09kc) a6hdlhe4 c its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not dependmf+ *.8xbpr l79t j ps:ns,pby on the quantity of matter present. Which of the follow8pnfs,b9x lb7:ypt mrj* .+psing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surfab8x m4kit fku)4bi0 8dce of the Earth. Assume the Earth has massfb8ki 8d4 mitk4)b0 ux $5.98 \times 10^{24} \; kg$ 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 sphere is itpf)j;c1 f,fyw6j n -hn free fall near the surface of the Earth. What is the magnitude of the grafn1;-h c 6pwftj j,fy)vitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase whiibj 75v 6n;owble its acceleration decreo6wn i7jv5; bbases?

  00.11: A certain particle undergo/p(fxm j43naxx- 4wq lhw+5rees erratic motion. At every point in its motion lpr xeh44m5+(aww xq-jf/ x3n, the direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a person.t,z (o h(;8wzb .8zdnz es7bgh The pe.(nb;bzgzhot ,z(we dh87 s 8zrson pulls on the string uniformly accelerating the block 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 situaty:,ve69z*4 nw adxkebions is the net force constantly zero on thebn z4 6*, xv9:kydweae object?

  13.28: An object is in free fall close to the ground. A persmi cvu:uvv*.6rs:qrh 2b by8 7on intervenes and slows the object uniformly to rest. Which one of the following statements muqu6b v8s7:* yuih:bvrv. cmr2st 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 magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 hk* )f(: krmq;tf0,dhia,mw,7 xk ep bN, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 *kaebk (0qhr7,ix ,) hp d,ftm:fmwk;and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine zgas rco5*9m5to form a resultant with a magnitude *or9ca5z5 gsm of which of the following

  10.06: Which of the following statemeqvb9f6.l5qusvqg s d+ 9ppdl(ybx-.9 zc)cl .nts is most closely associated with Newton’s Third Lyfluc 6p9 slg d9+-pc(l .5..b) qvd9 qbqxzsvaw of Motion?

  95.06: The reaction force does not cancelrtzkx(c. 5 q)ul ,,7/slgnfdg the action force because:

  14.14: A box rests onuv5hi0t88 i+ks 6ofhc the floor of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational fohhk f6i8t0io + s8uc5vrce acting on the box by the Earth?

  15.15: A skydiver falls1x .uhhsyq;t 2w(,1af2s 8 t jxufaq9g downward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance actingaxqyw19 sf 2t(;t82,f usuh1gq ahx.j on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. i lr(o(s hp./p The batterswings and hits the ball. The magnitude of the force that the ball exertsp hso .(rpil(/ on the bat is always

  11.13: A physics book sits at rest on a table. On topf7ta p i:u518fbz gmu.,7ulns of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exertlsn5tz .u7 g,ffm8:7ipa u bu1s on the book?

  05.06: The students in a Physics I90i93aw8zpw. us8fd ogobz7z crj avy .2w:0 a class were in lab conducting an experiment related to Newton'ss8w2 z.a 00yaa.u7 rzpfvb9 iw o:g9o 8zjd3wc Second Law. 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 while at t0ttn yw9yd47 f+ika) nhe same time the mass of the object fw t7 +4y i9n0na)kytdwas halved,then the acceleration of the object is

  96.15: A car whose mass is 15jm l.ic nn2t*500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the ca iml*2c5tn j.nr is:

  99.05: A tractor-trailer truck is traveling down the road. The mas4,4c88 8 cvvmemutukh nl5k*ks of the trailer is 4 times the mass of the tractor. If the tractor accelerates for c5v8uv8, 8m* 4khk4mcnkuletward, the force that the trailer applies on the tractor is

  99.16: Which of the folr m2t,r8 k8j ))8aftu1sd nmfmlowing principles best explains why large tractor-trailer trucks generall8u1 2 mjf strmn,8a)kd)8frtmy accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2:k2gn6jwgc(g kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the c6gk2g:g(wj nsubsequent motion?

  00.13: An object near the surface of the earth with a weight of 1ppu:5x.) uod h00 newtons is ac .5ppd)ux:huocelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated fr v8 ;e; htak2p(2dzkfqom rest by a constant force of 2400 N. What is the spee2zd( k ht vk8p;fq2ea;d of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 mpxlo0 dg ;ic8 (i4h2tz/s slides across a rough horizontal floor before coming to rest. The frictionltcpd;oih 0z2(x48 igal force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rough4+t fan)9b zls ah p55lt-wjm1 horizontal floor before coming to rest. The coefficient of frictionat 4w5mzbafj lt l95psn1+)-h is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person in bi n 7qob29e6e2dqnk) p-x(pushes directly to the right on the box with a force of 60N. The coefficient ofe-npn enxdi7(b 2kbo q q692)i 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 initially moving at 8 m/s accelerate))c2c0s0mlnu z+qccrkh7 .l1ey e jz+ s uniformly to rest on a horizontal 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 hesm))cc2 7uqcl+z1 njkz+.0c0yl r ebetween the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a speed v wi 49 s48wryz gpe67 i7bnhuf/izth its brakes locked. Ii 9y7ui/46znshz748pwerf g b t then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the dry 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 with its brakj xoi +de60y:ne.1 .pq dvuc4fes locked. It then hits dry pj:uqiod. efx6ed. vp0c 4y1+navement and skids to a stop in a distanced. The coefficient of kinetic 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 m1 tgwa9 5y+s0wy9qrcrakes an emergency stop by slamming on the car's brakes and skidding to a stop. How far would the c0+rga t5s 1ywc99wq ryar have skidded if it had been traveling twice as fast?

  99.39: The driver of an 1-q-zl 86veqh0eo l;.n l7)deyjv wlmautomobile must carefully control each of the following devices. Which of these v-)ll0qwlqe;-18 e ojhm.7d yzven l6 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 rocket with a weight of 15000 .wtoln4g y56g pu t5:onewtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed optnwg o546. lgut5y :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 horizontal9b/og.4 ist1v)aheq+kb 8f h vtd+vz5 floor. A person called Ted 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, rank the sizes of these tk a 8ibb +1q)z9h ghvsv4veoft+t /.5dhree forces exerted on the box.

  02.27: The diagram below shows three roller coaster track.u 7h9 k/)w0yba1zvg2hq kyvh s of equal length. Assume that on alhhz 9)ak0y 1u.v gv/whbk72yql 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 roller coaster tracks of equalqhk2vx xd;a6i6b9(-eaxo/aj length. Assume that on all tracks the roller coaster carts9 / e;q2a(doikja v xh6ax6-bx 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly along the curved t ogomz1 n+((fv.y( 92i gzovffrack from point A to point C under the influence of gravity. Wh.yng2ozmi vgofvf (o 9(fz1(+at would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is92 buz 8kxzw4a 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 and the floor if a 250 newton force on the rope is required to move the crate at ab8kxz2 zaw94u constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initia0tw9. rzcajb /lly at rest is pushed against a wall by a 100 N force as shown. Thecoefficient 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 seca /wz.0r j9ctbond?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass.f7g7xd0l bydgsx. ,0)qy zyit ,9 crs with a 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 CORREc,7sy0dq0bsxf gx7.,gdiy l)tr y z .9CT?

  06.14: A book leans against a crate on a table. Neither is m()5ewszgc+m x oving. Which of the following statements concerning thisx c5(mesw g+z) situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh it 0f4+kb)/ zx qup2xpis pulled up a hill with an increasing speektpzxux+2 q 4fp)b/0 id. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?