99.36: What happens to the ivz ocfx)h(u *: ab,d0*fvsyy8 nertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on theirxzr;n0l n-0pa 0h9b8x-kr4aw;iw t quantity of z 0xwpt8k9a;i -xn b;il w0rn 0rha-4rmatter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surfadxk)lz f kkz*l9je 9 )ne3ge39ce of the Earth. Assume the Earth has masskdknx zj9 )9f)e*9gelk3l3e z $5.98 \times 10^{24} \; kg$ 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 in free fall near the surfazk:b6 tab77 +ty -7y8 ua/-rpld wrwyyce of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Ear8yt-+/ r-yw7a r6b l 7pabz:yu7 ktwydth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to incrw ugsdu/90 z2t1b b ehe65xhu9ease while its acceleration de2s1uu g e9x/tebzd50w h9u h6bcreases?

  00.11: A certain particle undergoes erratic motion. At every point in ch;gw17rkr s7 its motion, th1ws 7ckg ;7hrre direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held bywa*, mfkh.g8s a person. The person pulls on the string uniformly accelerating the block upward for a short time. During thi sfw 8.kgh*ma,s 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 situati xokh)oag*- fd9oq(3sfn 6edqsa .2 q:ons is the net force constantly zero on the n6-*(ssxah9d: 2gofd .a eqqf okqo)3object?

  13.28: An object is in free fall z x(qa 5fgug52close to the ground. A person intervenes and 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 objexaqg fz2 (5g5uct’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forceszif ta u4(wz:svocp h37h6r: 31)aeu a, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude ov3op:( ht4azacr1 :ia7wuh zfs 3e)6uf the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a fg a4j m4k/u)y1sa) ltb9e7t xforce of 10 newtons can be combine to form a resultant with a mt luae k1at9s 4f7gm)4xj/y)bagnitude of which of the following

  10.06: Which of the following statements is most clfjep 4b 7-8rtyosely associated with Newton’s Third Lat jr bf4p78-eyw of Motion?

  95.06: The reaction force does not cancel the action force uy1 f/1pwa; 2.bo * ixcvddto6because:

  14.14: A box rests on the floor ofz x(,efj *0 bsqdctysl4c43)k,bj 5co o6 1dcx an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitation( kcc cys qfxsjbdtlo03e4b)d5,16ocx 4 j*z,al force acting on the box by the Earth?

  15.15: A skydiver falls doh0dm*9iv9(ufue9 jyd7 rjaaa 2fd, k6wnward 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 acting on the skydiver during the fallfd9ij( uev9du0 dahr92*ymkaa f7,j6 ?

  06.08: A baseball is e w7 7:b.ntc7o(;u.buhfzw2o5ecr l l thrown by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bw7 (orb7:.w uhfo.t 7ll2cun5eez;cbat is always

  11.13: A physics book sits at rest5.wyb n05spn 0 cwt7ry on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the News0nwc b55. 0rn7ptyywton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students i cg/d49talp b(n a Physics I class were in lab conducting an experiment related to Newton's Second Lpt49c/b gdal( aw. 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 o+sq ox3.rjfyh/1(f ten an object were doubled while at the same time the massst.3q yf1/ofjh+e rx( of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a spee/ giw4mx8ibb7 h* hij*d of 20 m/s in 10s. The magnitude of the net force acce**ih i47wghx/b 8mjbi lerating the car is:

  99.05: A tractor-trailer truck isa j.6b1 4ojtkehm 84iq traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelera.moj4hje86q4akt i1b tes forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-trailea,zcqfn -7 m-7iiki2, ttzvton-* /2s wth+qbr trucks generalsz-tm+ai,i2t f2z-*c/o nqbw ivnhtk7 -, qt7 ly accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at res:f6tndii-je*6 rg 1c hpr(-v jt on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent*:n-6hpjfiect - rdg1 6(irjv motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons is)q9lvqv ..wj g al..qj)qgv9vw ccelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constant for2(ut 7*m.fnhb ( byaluce of 2400 N. What is the speed of the car 8.0 s after b* m(2a. ybuful7(tnh beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across -)) rqb3rioxk u13fb z2bdu+ ia rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide bef2-)b1i rz3 )rqixodu 3f kbbu+ore coming to rest?

  95.38: A block with inihq.-d;g 2w/.vfq b maptial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of frict./dhm-qp .2a;wf v qbgion is:

  09.21: A 20.0 kg box remains at res -mefbu2kz )z0cx 2rr8t on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The cf)xbrk0-muc22z z8r eoefficient 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 initially moving at 8 m/s accelerates uniformly to rq9f4tzfln2 i .14j drr+ua i)aest on a horizontal surface. The block t iinau9.r 4124zq+ ldfj)artfravels 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 pby i;;)j zyw.its brakes locked. It then hits dry pavement and skids toi;)w ;b z.yjpy 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 7o7iy r4fa( yxacross a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinx(74yi o af7ryetic 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 by slamming onigz/1f1i +evcv j72 th the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling tv1/c h+7zfiig 1e2tjv wice as fast?

  99.39: The driver of an automobile must c1( zcsegacdsbaik*u * 8a0c1 2arefully control each of the following devices. Whi1sa( kazea8s0 2*gcc*cbd iu1ch of 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 rocket with a weight of 15si2l:f z m*,gb000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’zlm* gfs,2:ib speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the rn vb2hios7a 1,5/w wfszgig4+ight across a horizontal 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 foa 72ib ws +gshvf5z/i ,w1ng4orce T. Given that there is friction f and the box accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram belb6o8 jez 6nq:xow shows three roller coaster tracks of equal length. Assume that on all tracks the role86on jzbq6: xler 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 trackslgh3 f x8req7s.k- c3u of equal length. Assume that on all trackssur qec3-7kghl38x . f 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly along the cur f14ku9989t;qfrx p v xdhjezsz7(g4vved track from point A to point C under the influence of gravity. What would be the direction of the cart's acc7d9ffxhkj 4x szq1t(e;v99vz rp4g8 ueleration at point

  02.40: A box with a mass of 50 ku,awd-/zq wga)z 1sa) 2sqz 9ng 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 and 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 twqa -a n1) /agq2z,ss9dw )zzuhe diagram?

  04.40: A 6.0 kg block initially at reskfu.i*8t1 o+p t e12iqii q3kqt 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 qi3q tk. i p2k qietu1i+1*of8after a time of 1 second?

  05.10: A homeowner pushes a lawn mowestc q:c 0( wei)-v9pkn8aagc,r across a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicate the directions but not necessarily the magnitude,cngw 8:a-)(v pc0ieq cask9t s 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 against a crate on a tab e +hy,l85fzgvle. Neither is moving. Which of the following statements colh fve,8g yz+5ncerning this situation is CORRECT?

  06.15: A crate of toys rexvh, v ::,k e5byyw-lb )rm0uimains at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crabuv:yi, x)hk wyv5 e,:0rlb m-te is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?