99.36: What happens to the inertia ohs(aefol-88 ,kwijf 4iy, m* sf an object when its velocity is doubled?

  02.14: An intrinsic property oskccu)k32qtfcrigx 7p 8 *1e 5f matter is one that does not depend on the quantity of matter present. Which of the folle2 8 )fkq7gsc1 x i5cr*pt3kucowing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder gs 5b -, wb0q 7qychbl:n00dbirests on the surface of the Earth. Assume the Earth has masy5h 0cl0 -s7b,qwiqd :nb0bbg 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 sphere is in free fall near the surface of the 4- xo;u9uepsiEarth. What is the magnitude of the graviex-;i4ou9 p sutational 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 increae +2g wlaot2*pxwptf 3m 2.2jfse while its acceleration decreaa2mftfx3 2*gp+p tw .2 eo2wljses?

  00.11: A certain particle undergoes erratic motion. At every point im pbjihkz 8x;y5 ;,4unn its motion, the direction of th5hnb; zy8ku ;im ,jx4pe particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at ac/3 b0 tiqoz1the end of a string held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the following choices c/aq bitz01 co3orrectly 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 force constantly zetkkeycgc7 h93h4n7,z ro on the objc7k7e3hh z 4,kncg9tyect?

  13.28: An object is in free fall close to the ground. A0q 71/a idznu du 5 hequr(t*hx8jf;u+ 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 magnitudefh1 5e/; 8idrud(nuzuqth 7x0juq a+* of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibriumjl3v 1aho2 j .v)g.6ni6h )p sfas/ucl has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it..)lvsa ajh j6snuo/2 f.cgp) 16l vh3i The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 nembkk g uamchk 6/0en*/4t1h)jwtons can be combine to form a resultant with a magnitude6g4hm)ka h1k /0 t cj/nm*kbeu of which of the following

  10.06: Which of the following statements is md:.f okt 89vv.4ldbep ost closely associated with Newton’s Thirbode9v.tkl d . :fv8p4d Law of Motion?

  95.06: The reaction force does.oq2d tw)imfs :6g id6 not cancel the action force because:

  14.14: A box rests on the floor of am:ggy 3rnlsj;a) ,p5i n elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’n3m;si, lrgj: g apy)5s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward0,6mo kbvw.mz+m9mqr 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 to ,mw0mmkzvb+ .96rq mhe skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speebmmv,r,om+ y, xi52dd d of 35 m/s. The batterswingsmidxo5rvmmy ,2b, d,+ and hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits a6.w09 .fv x4k+idffbrx0y7h hlr2xomt rest on a table. On top of the book is a calculator, also at rest. Which k09lo4wf6 vr b x20m +if. dry.fhxxh7one 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 Physics I class were in lab conducting an expe i2jrhwpql5h9os )pf l2*s.vt ;-/ swqriment related to Newton's Sep t95.ijqpqrows h)sf-l2l;shw2 * v /cond 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 the same tim wjqxy d+rzop)kjw2// i2y8- ce the mass of the+wjid- yc)z8 / p/x2q owj2ryk object was halved,then the acceleration of the object is

  96.15: A car whose mass is 150 gkgic3v +d ;5jw:ask.0 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the csk.vc;3 5ajig+ dgwk:ar is:

  99.05: A tractor-trailer truck wec( s4ag.kt7 is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tra. k7t( sga4cewctor is

  99.16: Which of the following prinr 8ir ) pl,8fwbgd9/qnciples best explains why large tractor-trailer tlnpw, r)fi d8/qg 98brrucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws ap cdqm m))gmej+c71s3 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsdcps m1)emc) m j7q+3gequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons is ) i q+bxe/pjm9e+nc6 vaccelerat)nmb j9pvexc+q6/e+ ied at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is ac4nnkbp4fy*d+; wlc()1v sty x( fs(f0 2pohmecelerated from rest by a constant force of 2400 N. What is the speed of the (p+s 4; 2vo*knlx()p(b1t0h dfemcn4 ysfw yfcar 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizo, xr.vwrb+ ./yjps4uzntal floor before coming to rest. The frictional force acting on the bl rs .r+w/4u.yxv bpzj,ock is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 mwxrl 1*8f 9w3x 5ozmiz/s slides 8.0 m across a rough horizontal floor before coming to rest. The z1w39* z ox8lwxri5m fcoefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a h+ gyoiyfh yo+i l2gn:c7 1)i-zorizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and :ilhyfgo+g)+yz1c yoi- i2n7the 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 univ rmfx8rlwwr( r4 a9s,z;z *s ;vuf7m;formly to rest on a horizontalvsm ;,wz 4uw z rrmslr;7(v*f9; ra8xf 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-xtq7 (l + limp5alv6r ice at a speed v with its brakes locked. It then hits d5xlvl +a tqi-7r6(mp lry 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 ,nus iuiz l,j:;kzf -3its brakes locked. I3ki s- ;lfzuji,:uz,nt 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 speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emerglag; s .iuji/+ency stop by slamming on the car's brakes and skidding to a si+ji. l us;/gatop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully contro,+r(aj gypu ncz:9:; oiz8 zpzl each of the following devices. Which of these devices can cause an accelerjzzunr,+o;9a:z :p(zcg p 8yiation 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 weighognkmdw)xl 5srjmvq63y :/3:t of 15000 newtons is 24000 newtons. About howdkg6x5 )lms3:/jvo nr w:m3 yq much time is needed to increase 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 floo;8 6 *n,kw1fd up uo4dsso3-iuq-mjeqr. 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 tid;4s oeqo6j kfsu83muud,p- w1 q-*nhe force 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 below shows t-ylt7qs.k y:w *taki ch*(dj8hree roller coaster tracks of equal length. Assume that on all track kd*kt(-h78cw*aly.tq: sjiy s 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 showdg79;sgj 3/ e-o3ypaisrdid, s three roller coaster tracks of equal length. Assume that on al 3j p i7osd/;ira,sggy3d9d-el 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 reach the finish first?

  02.29: Assume the rollercoastdu8p8399r sorm9zigl5nw 7mn)ear c(er cartrolls frictionlessly along the curved track from point A to point C uza9s59d 8m enm7c9 uirg ro 8nrlwp3()nder the influence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg eezwn 9m* 4)eo+,wawe 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 tm)eea*newe zw+4o 9w ,he 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 resxhhk 1jwagm,0- * 0ddxt is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of staticmw-d0h *0x a kxgh,1jd 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 across a horizonty0xi 9-32tssqtshcr6al patch of grass with a constant speed by applying a force P. The arrows i 2-6xt90s rqsh ytcsi3n 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 against a crate on a table. Neither is movi r0hhia1- 4laz+b)gu tfj+0 ugng. Which of the following statements concerning this sitjb) +l+zrhau4tg i0g0 f-a1 huuation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh iyhau-r 48 jp6evw o*kyzy8srj*v0 ,l +s pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is respon4jj - ly,z* +8v*u0vr6h woas8yprykesible for the crate’s increase in speedup the hill?