99.36: What happens to the inertia of an object when its velocity is. t, 5yfwdngi;btk6x, doubled?

  02.14: An intrinsic property of matter is de+p2c b - (.do.yso3oeer0 ; t)xampwone that does not depend on the quantity of matter present. Which of the following properties is NOT tda. -d(e)oepy2rmob3 0 es+powx ;c .an intrinsic property?

  04.16: A 20 kg boulder rkv3 rwus(at h ;0 amkzu.+89nrests on the surface of the Earth. Assume the Earth has massm vushk8twr (zua0. ;k rn39+a $5.98 \times 10^{24} \; kg$ 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 Ea+mb1jil 9nop o a59r*hrth. What is the magolh1an 5p*m ibj9 or9+nitude of the gravitational 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 while its acceleratio8) xnobvjo: w3lrb1 i4rnvo:jo)bwibx38 4l1n decreases?

  00.11: A certain particle undergoes err jkqb36d);w w yw;4rjbatic motion. At every point in its motion, the direction of the particle’s mome6 dy;kbq r4bw)wj j;w3ntum is ALWAYS

  17.14: A block is suspendenvpi bjk) 8dzuvx3+;bf7+ +*cawquc .d in the air at the end of a string held by a person. The person pulls on the string uniformly ac7unv8ub.bp +3)dk+az; c+xvwic f*q jcelerating 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 situations is the nett;oyxrb8u (u0i7 6gmy/qh em9 force constantly zero on the objec8 7rymhq yu;ute/0b(x6 og9 mit?

  13.28: An object is in free fall closegpnp3i,gyd*/* yr c1u to the ground. A person intervenes and slows the object unin*yucp/,*g i1dg 3 pryformly 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 g.

  98.03: An object in equilibrium has three forces, F1 of 30/iqus+ *o+o wj,xi3 x:atb r5i N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultixsa5oi3q u* ,oxjbwi++r/:tant ofF1 and F2 is

  01.07: A force of 6 Newtons and a fj8wwldih)eo-/su3 /xf p+)k corce of 10 newtons can be combine to form a resultant with a magnitude of which of the follo3wxs)fd8 k lu/ +peji)h/c-wowing

  10.06: Which of the follow9:844 ytwcsj f*hjzjning statements is most closely associated with Newton’f9z4jj8*4:wn hyjtcss Third Law of Motion?

  95.06: The reaction force does nok:-r:jbf den+; lea9ux zx0*a t cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerati wn/splsg8grswjd d t5;d3/2 /ng upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on sd/g3dj8g/p twsrl /ws5;nd 2the box by the Earth?

  15.15: A skydiver falls downward through the air e :j-omrp29 k i8oz)+.c16 -iqyzftyqlg4 lz owith constant speed. Which one of the following choices correctly describqk 6z8 :lyr j4otoi) 1.+-qp mf29l-oizcez yges the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speedko lg,z /g;u41du gij de2/u6e of 35 m/s. The batterswings and hits the ball. The magniulg/62d u1i;goe/ke gu,z4 d jtude 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 thems+n hmuz ;i1*l6iawc 74w6eat7 8wg z 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 exertswmc*;6l+i14mzw t7 ghawn i esz876ua on the book?

  05.06: The students in a Physics I class were in lab conducting p*a(eo3 uf4tran experiment related to Newton's Second Law. The collected data were displayed on the graph at the right.f ar*pot3u4( e From this graph, what conclusions can the students make?

  99.03: If the net force on an object were don c(.l2/ir.mmkui7in ubled while at the same time the masi(cmi.u /m.ni k nr27ls of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 15m:w-jz ;c 8pwc00 kg is accelerated uniformly from rest to a speed of 20 m/s in 10;8pw mcz:- wjcs. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. Th. g;r ftmtz2 6y:jogii4-bo5ne mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force th otji2; b:yfntg z-irgm6 o45.at the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tracx9 8y-f*z t z7t/gqqtftor-trailer trucks generally accelerate much more slowly that aut/8z 7 q- 9fq*zxfyttgtomobiles?

  99.19: A 50 kilogram skater ,jfy 7/3odac kx27)qiyxgy-s at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement d 3s7jx cq)ya2k-yo7 gf,xiy/ describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of otfry7pn92dt r;np4/b 1 c *vb100 newtons is acceleratedn72p/* p tvb f trdrync;41ob9 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 by4-e,4qcbsv zt ip9h5 t a constant force of 2400 N. What is the speed of the car 8.0 s after bb9e4- 5c4hittzsqvp , eginning?

  98.32: A 3.0-kg block with initial bq u,w7:7ikgbspeed 4.0 m/s slides across a rough horizontal floor before coming to ri7wq :7bb, gkuest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initialx-l0)g 4 lbjxm velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of friction jl)0x gbx4ml- is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a pers:2a a vj30vgmton pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the sa3: jg va02tvmurface 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 rest 6nk(tayh78 mww;nh,j on a horizontal surface. The block travelj,mnnhw ;k7h wat86y (s 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 pa: : cf2 hnt;ej kwr.x+gugz-fi7gwp(2tch of ice at a speed v with its brakes locked.zgk-j2+tc:w wg e2 gxfh;pn 7 u.fr:i( It 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 slide n)g8oeib:a u:kn.j p1s across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids tog .b p8i)kunna:j:1o e 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 emergency stop by slamming on the car's bra497vqa*pe/wrs 8w te ,)8eun wz7 *auubjlaj/kes and skidding to a stop. How far wu8w,a w e)r 7/jq7e8wlnb a49sut/v*a jzu pe*ould the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control eac 1opfig +h;z +gt8d08bipr/5fmgg 9b ih of the following devices. Which of these devices can cause an acceleration in z05fg 8g gpiip;br+tg8+ho b/9m 1dif a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rogv3f ;x 6prlx;cket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near gx 63 xp;lrv;fthe surface of the Earth at takeoff?

  07.21: A box slides to the r(2 5u8jyup nwhr .gt)zight 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 tgzn)u8 w2.5p r(yhujM 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 thr )m,jnmry b9nng3p36e4 q:hf qee roller coaster tracks of equal length. Assume that on all q6ngep9mm3hnj3r4,: b qy)fntracks 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 equal length. Assa /h+yb8u i9kkmy8xd .,m:wasume that on 8.d8ax+ ykbmahm,u s:wi/y 9k all 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 rollercoaster cartrolls frictionlessly along theavg0f7fopm: t,+2eghff ) ft1 curved track fro1) thp0gvf:a +2 ,ffm e7tgffom point A to point 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 dragged ac(mava of:o 2wzc:7m+xross 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 fo(coaf: v7z:o 2+mwxa mrce 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 initia 00o(fdz )mgw2dwnta; 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 0.50o 0 md)wg(nwzd0;ft2a . 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 ji do+)g7 q99hxje livsg 3au+20 7yxihorizontal 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 magi2i hxv9+y039) g7gedo7ij +ju slaqxnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which of tz9g9kjkog5 b-xrl 7:)p 4et1agem nq, he following statements concerning thizb , n 9-pe)5l 9q ka1grk4ggmx7t:ojes situation is CORRECT?

  06.15: A crate of toys remains at rest z p/:igj:toc nav)zj73f4z*g on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fas/ : o7zjj g3 aczn*z)vptig4f:tened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?