99.36: What happens to the inertia of an object when its velocityaa:w ., 4wcso i)iu:mp is doubled?

  02.14: An intrinsic property of matter is one that does not dependci, x7qolfrc8 cr6t)j3pbgphs 3* g wk-m7 1m; on the quantity of matter present. Whichxmrp-g76b3 3c,ojslf8 )gw phri1 ckc q*mt;7 of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the su0:n 5rkc8 jiozj5zp7j rface of the Earth. Assume the Earth has masp55 0r oi8zkzj7j :jcns $5.98 \times 10^{24} \; kg$ 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 im/5aa 1g;cco es in free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earthm ge5a 1/c;oac by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocif(qw+6;a 2erehwwc ; wty to increase while its acceleration f2;qhaw wrw6; ee+w(cdecreases?

  00.11: A certain particle undergw7x9,cp7fm rzlxc8r)lkt, k - oes erratic motion. At every point in its motion, the direction of the particle’s momentum is Arz 7flcm, ) 7-x,9l 8pkwcrtkxLWAYS

  17.14: A block is sus+ cj5biqjj*v (pended in the air at the 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 correcjj(b c5vij +*qtly 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 2(ihvgq v3up)force constantly zero on the ou(qpig)3h vv 2bject?

  13.28: An object is in free fall close to the ground. cjh-n0 :vccpp ei92m)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 object’s acceleration is a and the magnitu0cmv9 : pnjh2cc-eip )de of the acceleration from gravity is g.

  98.03: An object in equilibrium h0 f cf +lk.mka2g(n(zyaq:e.zem+ z8w as three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on ifnwq(a.y2cakm lz +m(e0fe+k 8:g z.zt. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 new24, hb mhla(:rrl2u yptons can be combine to form a resultant with a magnitude of which of th llaup:bym4r (,h2r2 he following

  10.06: Which of the following statements is most closely associated w .nb1f-x+tb4j onovy 1ith Newton’s Third Law of M4jf +vy1nnb-.b1ot o xotion?

  95.06: The reaction force does not cancdd -*u6vw;x9atix7ml el the action force because:

  14.14: A box rests on the fc9c+6/ vprcq-,xpu3g ptxw ;oloor 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 force acting on the box by the E,93wc+gxpqro6utc/ ;pv c -pxarth?

  15.15: A skydiver falls downward through the air with consk1i39 /vfyr hwtun( *xkwd:q,tant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the sk(:untydh 3*ikkx ,f rw/91wvqydiver during the fall?

  06.08: A baseball is tn9f:9:z1 wfdxmjf : gzhrown by a pitcher with a speed of 35 m/s. The batterswi :mnj g19f9:wzffx zd:ngs and hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of th7o -evs*idvk2fuguss +( (t1xe book is a calculator, also at rest. Which one of the following choices is the New(+2s *o7gx(v- kd1usvf seituton’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 coeh9wnh)9f: j tnducting an experiment related to Newton's Second Law. The collected data were displayed on th 9th fhwe9nj):e graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled eml*zrk e169g while at the same time the mass of the object was halved,then the acceleration of 6g9kmee* z l1rthe object is

  96.15: A car whose mass is 1500 kg is accelerated unifor l* t.e.fj d64fxqae+rp: zcs,mly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accfe6 xfr: ljc,st4 ep.zq *.ad+elerating the car is:

  99.05: A tractor-trailer truck tl(quc(8z/ uf.3wlpqa;euo + is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelez+(.u;fc l 3 l/e8(quwotaupqrates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractorl4 *r+mp1hkr3ucch ay7r 3+ax -trailer trucks generally accelerate much more slowly that automa +ykm h+ r1chx3p*7raul43crobiles?

  99.19: A 50 kilogram skater at rest on a frih7umf ezj un/h30qsw5 a652k kctionless rink throws a 2 kilogram ball, giving the j a5z3mhew n/sh6u uqf 0kk275ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 neei.y1qr tn ;( ef2dl. oc pzp,3oloa43wtons is accelera(.n .rl t2dpc 3e4ooy 3;pl,qefazi1oted at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 120 z,nfofp0.c4lzfs1a )0 kg is accelerated from rest by a constant force of 2400 N. Wha,fz .z0 lcs4 a)no1fpft is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides acvv3n:aj(cyqtgrg8z l :no :/6ross a rough horizontal floor before coming to rest. The frictional force acting on v(8o 6lvqz/3:n yngarc tgj::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 a *7 pfhkmn4;im/s slides 8.0 m across a rough horizontal floor before coming to r4nh mpa *;fik7est. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person push; 6 jhb)lhfc:9mdxc.pes directly to the right on the box with a force of 60N. Th;p9ch)bcd6hm :j x.fl e 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 initially moving at 8 m/s accelerates u) 6 5jtcvq3isbniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the sl 5vj6tibsq 3c)ide. 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 atndg lp1kv .5b9z 1 u4 df6x;mzgzs6kh8 a speed v with its brakes locked. It then hits dry pavement and skids to a stop in xs6;ku fkdm84p 1zl 6 5.nbghvg9d z1za 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 sla-c-ewbr3 rj 4gxf(6cx r0 4gpides across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a dicg(jwrg-ar-x60fcx3p 4r e4b stanced. 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 ema: akdje049aa f6.oz2ghk;tn ergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been travelin:a6 et zfa9kna.4; koa20dgjh g twice as fast?

  99.39: The driver of an automobile must carefully control each of the folly )1khg6+ plvcowing devices. Which of these devices can cause an accelera 6vl+g1kcph)ytion 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 ne snev rj5xdk7(40f*v0 uxcqw,wtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of nfxvs v0(w,u0r*qxcj57dk4e the Earth at takeoff?

  07.21: A box slides to the right across a horizontal flxtf9o ha7b3l 4oor. A person called Ted exlfh37tx ab49oerts 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 three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of ev a f.zm5d5u*wqual length. Assume that on all tracks the roller coaster carts start *wv.u55mzfda 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 coacrvnbrc u50s m06f t7am85bvjr80a v5ster tracks of equal length. Assume that on all t8ma0 7rtv0b0a5 5c jrfvb urv85snc6mracks 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 frict9 mxqdru5fu*d d5v1 g+ionlessly along the curved track from point A to poinrxud5+d9fg5q *v1dum t C under 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 is d pi u uyl)+v :gvsj(9p3(s8fsiragged across the floor by a rope which makes an lssfs y3+ (9j8uipv )v:g(puiangle 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 the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall by a 100 N for yymk8 o)i1gu1q/cb a,ce as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What iso8kyy g/) a,qbm1c u1i true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes w. 9:o7r ifxhsa lawn mower 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 magnitudes of the various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, P is CORR9.i7o f:shxrwECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which of the7oe6 xm*oo s ;v:h n5a4t6r k+:j 2mv7vyrxaie fol:tovy a mxm h;*:2k7667ej+rsoorxaenvv 5i 4 lowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at re0s9 1 w-)kvp(cy+snem+cqd q est on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is resp q0sq- 1)dwk ( vmencp9+y+cseonsible for the crate’s increase in speedup the hill?