99.36: What happens to the inertia of an object whe e ,qe,l+g3b zsruegh6wg*y 00n its velocity is doubled?

  02.14: An intrinsic property of mas5mm sotv,5;d tter is one that does not depend on the quantity of matter present. Which of the following properties is NO;t mdsm v,55soT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface ofi/atpwxj j8, . the Earth. Assume the Earth has mass /wap8 jji. xt, $5.98 \times 10^{24} \; kg$ 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 +se)h ay ; f2f5v:+ql)3llza xscgpn4is in free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The l+a4 p +z lcs)g;2:vye 5)fl3fn xshqaEarth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its acceleratic9z-z82ck0lsgvhxrc1r ffdtl( y21 , on decreases?k c 11x2r c8gr(,fyz2lhdtz c9fvs0l -

  00.11: A certain particle undergoes erratic motion. At every: +xekva,gi6 4s -eg n/of+ftydd6ji9 point in its motion, the direction of the particle’s momentu j/ :4kn-9i +ef go,6gadt6fsive +dyxm is ALWAYS

  17.14: A block is suspended in the air at the end of a strin9 , g 5,sgrzvtzryr8hp87y5hnzglp73g held by a person. The person pulls on the string uniformly accelerating the blo7t5 5v ryp,psgr z8ry3 n,h 7lhggzz98ck 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 force constan8 kxj0)i+ wpb, m+ffgttly zero +jp, )t8ffwxg+bi mk0 on the object?

  13.28: An object is in free fall close tgwz y m v19 7ifj2)*cbx9u )fq1ef6x/ )mjlsqgo 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 object’s acceleration is a and the magnitude of the acceleration from gravity is gjfx)*fv99 / j)bg7ei gsqmwm611zlfcy) x2qu .

  98.03: An object in equilibrium has three forces, F1 of ( bu:2x*b m1v 1co.) gxy4/zzsqkbom c30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and Fozbb ku m) :zgq.sby1 4*2xc1ov(/mcx2 is

  01.07: A force of 6 Newtons and a forc, 0c r0*gqormx gt;s:ce of 10 newtons can be combine to form a resultant with a magncg 0 :socrx*r0tqg,m; itude of which of the following

  10.06: Which of the following statements is mtcdsl: /4vkz 6ost closely associated with Newton’s Third kc/ tv4d6sl:zLaw of Motion?

  95.06: The reaction force does not cancel the action 1oq8rji;r zne; ha45pforce because:

  14.14: A box rests on the floor of an elevator. The lxg8h vaktp9i* o/ 5.televator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law paiivka o9h/p8tl.x5 g*tr force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver fallswnxn8ua g9 1vsdh.d 4; pk9ba;z5zrc7 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 acting on the skydiver9g;bx.vs9 h;z nda8u7d4 r5 wkap zc1n during the fall?

  06.08: A baseball is thrown by a pitcher with a sk*0eg; ypx p w+ nk,ek6zbvv/6peed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball6+kv6knv* y,ezbx we;0p/gk p exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book iut co:jlfx73e4t t8 le *67jars 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 exerts otcj 7ojle8lrxa7 36t *e tuf4:n the book?

  05.06: The students in a Physics I class were in lab conducting an experimen:;xy)cs;hu xpt related to Newton's Second Law. The collected data were displayed on the graph at the right. From this ;)yu c;pxh: sxgraph, what conclusions can the students make?

  99.03: If the net force on an object wery.a2:yccqvu(wi qz-0e,ec 9 ye doubled while at the same time the mass of the object was hal y vwc .c9iay 0-e:2c,qzuqe(yved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated u)rfvxfr.o l (;b( jf+c9+t lcaniformly from rest to a speed of 20 m/s in 10s. The magnitude ofo.vlrja;)t +9c frcf+( (b xlf the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of d/ s++ eggou/yx*kg.s the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractoggsu+xd/+ky g/*eo s. r is

  99.16: Which of the following principles best explains p.+c4qsy fl j:why large tractor-trailer trucks generally accelerate muchp4q.yc +ls j:f more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throwsh7mv3trrie6 0 o3vbv0 - kgv:m a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent mot:- re60vv7kvh330 mmob tgir vion?

  00.13: An object near the surface of the earth with a weight of 100 newtons iv,6 zt ybt;t+ fep6 5:yvaf8rxs accelerated 6r8b v5,tyf ;pt te+6:yxzafv 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 for:)ho mp0am6si ce of 24ah 0m6): psimo00 N. What 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 acrosn puf3f ll+ba2zgu;x4s280t r s a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before cominxrlzbp sfn30 2tg+a 2f; u4l8ug to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8wk,kz1oqru 7 a1w(ezcp/ xt)e8 0pj8m.0 m across a rough horizontal floor before coming to rest. The coefficient of friction zqr0 xukptcee8 a/,z8 1ow)7p( w1jm kis:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person 87rdwcjq41i b pi4s4epushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the7reib wj44qic81sd p4 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 rebwy w ,;ml5ku1st on a horizontal surface. T1;b,5 wkuywml he 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 slixoja b9 )(p,oxnujx*2 des 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 distanced. The coefficient of kinetic friction between the t oujo(nj,*b92x axx) pires 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 i83d 5pc 2dmhan58q6jozq8 ugr ts brakes locked. It then hits dry pavement and skids to a stop in a distanced. The c zd58a3gh 6qu8do5 pjr2qn 8cmoefficient 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 emergency stop by slammi 83+.37ho:fm tcgmqnmooi 9zsxxqs 1 *ng on the car's brakes and skidding to a stop. How far would the car mg7h.qs* zo:nx3mqsitf + 8x c3omo91 have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must car osd)(u me6 973tuk1kxkstf0jjb (9saefully control each of the following devices. Which of j kotusxb799 dtfm03 ()ukjs1aesk6( 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 15000 newtons /n/qty 01wn ory:rj:cis 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 the Earth at takeoto0j rw/y1 c nrn:q/y:ff?

  07.21: A box slides to the right across adkw/isx c:g1s 1d-5g x 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 force T. Given wsci 1d x5g-g:xkd1s/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 equal lengtwygm+yx )h +-v+oy*az h. Assume that on all tracks the roller coaster cartyy+) w+*x+h ov gzm-yas 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 bel; / jc rhw:z.85wyzh)rhi4hbg c,nn )now shows three roller coaster tracks of equal length. Assume that on all hrcy8hz h)b,inn;.:gzr/cw4w5) j hntracks 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 frictionle66lde.v(hf3tn c0k u essly along the curved track from point A to point C under the infl.(nuef 3vtl6dc6 hk0e uence 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 dragged across the floor by a rope whs))o4wlxmbc e+1mjk .r k r2n8ich makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient rwklo84sbme+kj1.c2)nm)r x 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 forcbc.b kldje(g,c +f.vr by;1) de as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the fridrlkjb1)edy.c fv+bb,( c.;gction acting on the block after a time of 1 second?

  05.10: A homeowner pushes as:d4xz x u5-b+s4 zjpiao, i6b 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 magniox5bspa z u, 4ib: d+zij6-s4xtudes 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 movinviyqk:g1+ 15dri 2nru g. Which of the following statements concerning this situation +rd vr1 q15g:ki yni2uis CORRECT?

  06.15: A crate of toys remains at rest on a shu -7y5wwq2u5mzy h. mleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What h2m .y 7 w5huy5qu-mzwforce is responsible for the crate’s increase in speedup the hill?