99.36: What happens to the inertia of an object when its velocity 7u8 ujuq7vg3wzv vfjj fo)*69 is doubled?

  02.14: An intrinsic property of matter6q,8 rte0ycwed aifgg /q0 /.c is one that does not depend on the quanti, 0te/iae . rc8ywd gc0/qf6gqty of matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder res:9phdfk:j;6 pwups s *ts on the surface of the Earth. Assume the Earth has mass ws;k f *dp:sj:6uphp9 $5.98 \times 10^{24} \; kg$ 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 Earth. What kqqem b 6:;9sdis the magnitude of the gravitational force acting on the earth by the sphere? The Earth mass is:skmeb 9q6 ;qd $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible fgikop vk::h qo /g/p(7or an object’s velocity to increase while its acceleration decreases?p(:gvok7p/ :g/ki ho q

  00.11: A certain particle upj(-s oiwnx 6b oa2..qndergoes erratic motion. At every point in its motion, the direction of the particle’s momentumw(op2.6bqij-n o s.xa is ALWAYS

  17.14: A block is suspended in the air at the end of a s v,8a wflzyso 9;bq74ntring held by a person. The person pulls87ozn4ql;vsf,byw 9a on the string uniformly accelerating 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 nby2s44/j fj f8g da- -oq+2zdpaln+u/ u7vx mhet force constantly zero on the obj4uljnm-j/f+ shp qv8x4 d 2yzdaog/uf+ba 72-ect?

  13.28: An object is in free fall close to the ground. A person intervew9x2dus81 dbrpu 8 (nwnes 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? The8w9u2rw81ddb p sux(n magnitude of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equiu/up0gazu i3 0librium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resuliag/30uu uzp0 tant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons h9ueuuee(p bk8 ;1mqxgz;10s can be combine to form a re ;eu9g1ze b k8usme;1xp(qh0u sultant with a magnitude of which of the following

  10.06: Which of the following statements is most closely associated with r).jjb fp+g3q Newton’s Third Lj .jfgrb3)pq +aw of Motion?

  95.06: The reaction force dol;zrc b3 d)c2a.cg +pbj5hgy 3.jn(xres not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating ubhlw. f6fz0g7 pward. 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 Earth?.hw0fb7lzf6 g

  15.15: A skydiver falls downward through the air with cond 1ijk0w6-5(9byo2 dy 0klqkx 3 obvbzstant speed. Which one of the following choices correctly describes the Newton’s Third Law pql kkdwib(bo0 yo20 5kj9v6x 3ybd1-zair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a p94hdqpm* e-adq* a mw5itcher with a speed of 35 m/s. The batterswings and hit5 ped-q 9dawmm4*a*h qs 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 the book ms9w-n i(zirj )nmd, 4is a calculator, also at rest. Which one of the following choices is the N- (jii49nnsrzwd mm,) ewton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I cseh+xhxy2m 2zi*;s2zv g yo4 2lass were in lab conducting an experiment related to Newton's ;+4 yi 2*shyxvxogez2sh2mz2Second 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 q-jbqud8*q: sifkzqy2 wq1.a mtlt((a)v: o *an object were doubled while at the same time the masqzlf qa-1o) q*vq(2 wjk* b8a(t:dqm: .yustis of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated unifb;(,-v +imr rhmkm garl0b +1uormly from rest to a speed of 20 m/s in 10s. h m r+u0v r+1 -k,;mbga(irmlbThe magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The usrddh4 /n m/.1yyr-tmass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward nd/1 dt/-r4ry.hus ym, the force that the trailer applies on the tractor is

  99.16: Which of the following principles bes-9mnu, +bp met glva7ctx09;l t explains why large tractor-trailer trucks generally accelerate pc-0tgl9;,b uaet7nx vl +mm9much more slowly that automobiles?

  99.19: A 50 kilogram skaterezf7o4prr lol gyl6 ;o8b3a)5 at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the e;lybool oz 5)fpr6r34l8 7agsubsequent motion?

  00.13: An object near the surface of the earth with cr-+eolxc,t b8o 1r0ua weight of 100 newtons is accelerat 0cr+8-u ocrl,ox1tebed at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass2mbmy,2j5 w-daip fjjjm4h u++1. aqk is 1200 kg is accelerated from rest by a constant force of 2400 N. W5 2+ wd ujh-+j .mfp kjam,i12ya4mqbjhat 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 across a rough h4uc,j 8lbs, h0lm -qivorizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before comihs- milq4 jvl ,bcu,80ng to rest?

  95.38: A block with initial velocity 4.0 m/e y j.t)i9y +40tc+h *pvdmzins slides 8.0 m across a rough horizontal floor before coming to .dy*cneti+9)izvy j t+mh40 prest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest onwbwsal )xa7 .)r fxa4+ a horizontal surface while a person pushes directly to the righsbaf4a+r. w7)wxl a) xt on the box with a force of 60N. The 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 accelerate*m g 1p /i sh*5d6r(iu9rskwass uniformly to rest on a horizontal surface. The block travels a dista kssrdis5/h um1grw6*(ia9 p *nce 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 wit*ltdqr w :c.n tdfes s*(j3,7jh its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The co* swtr.j, :ctd7l *fesn(dq3jefficient 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 acrwp1 fjbscik wx*566 6sebis,1 oss a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a s1cs 6 61jsb,i 5b 6pkwfxsi*wetop 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 emerg+l:oi tp lmf))ency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twip))fmti+ll: oce as fast?

  99.39: The driver of an automobile must carefully cont2 hx,bsr+rz9xu:g .oo rol each of the following devices. Which of these devices can cause an acceleration in a movin , husr+ozx. g2:9robxg 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 is 24000 newtons- q7pq4-d 98e -s bxbmc: l8xi8dcmltj. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of th8pjb 9d-d4-sbqi c8xe 7m -m :cltxq8le Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person c* 0swy6lfua; ,*f;s( hwryt saalled Ted exerts a force T to the right on the box. A person called Mario exylus,**wsr(wff;yta ; 6as0herts 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 equal length. Ass97zmwxdt,z 7 aume that on all tracks the roller coaster carts start from rest at the same elevation and moves f t9az 7mxw7d,zrictionlessly 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 w+- p; 0mm 84ejk*r. l(zy :mzluovsgcof equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frirye0j+p.4v;-mc* lmg( wm k8lzuzo: sctionlessly 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 cu,fgx 5k nwko1:7rx hr*rved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration xf*:r,1 onxk wh gr7k5at point

  02.40: A box with a massiyu8wva;76o g of 50 kg 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; aw 8i7vuogy6 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 agains-f:+,qppcov94 t jzau jmt,k( t 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 t- ,j+:kofuz,ppcqa(jmvt94 after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass with azqq)h4-a i;7v3 jb*er 2 llojyd/5xkksnd)4h constant 3 jnro lb4k j 2d hiev))47/dks5zq*xlq-;hyaspeed 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 CORRECT?

  06.14: A book leans against a crate on a table. Neithhjravv:t t7 6-sv5e)oer is moving. Which of the fo :6vv) hjaretstv75 -ollowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled up asis ht69/z)ff 0jvh .o hill with an increasing speed. The crate is not fastened down to the sleighv zjsti 0shf6 ofh)/9.. What force is responsible for the crate’s increase in speedup the hill?