99.36: What happens to the inertia of an (jhbt. 5gnr ika6 n:jy,aog6) object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that doer hzb9;08vf j(ji km5vs not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic prope bjmvv (jhr9z8 kf0i5;rty?

  04.16: A 20 kg boulder rests on the surface olz adk,+ q0t*vdczmubi1:i0) f the Earth. Assume the Earth has mass * ,uid0+kq: zticl)0z bd v1am $5.98 \times 10^{24} \; kg$ 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 of2r+(cnp,dx w y the Earth. What is the magnitude of the gravitational force actic,w 2d(x n+pyrng on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an oqqi2y( vc3*adbject’s velocity to increase while its acceleration decreasey (q av3i*dc2qs?

  00.11: A certain particle undergoes erratic motion. At every point in its moyjnd2 9j1qbdtj.kt;mw- ; l+ wtion, the diredjj ;jt9k1- m.wnqdyw bt 2+;lction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held b1 :ih,kw 5z1pc/do+q /xx8mojyragg3 y a person. The persxh1w8gcd z3aoqk,yr /jo m/ :xpg+5 1ion pulls 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 net fo 3gc/.6z3klhi, fcqjfn0 5fzgrce constantly zero on the obq3,3zhl0fffz . gj6g 5c /ikcnject?

  13.28: An object is in free fall close to the ground. A person intervenes at e 2rys45nh pjdm09p-nd 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 acceleratirm0259j pe th4dys-pnon is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, l nx-sc ) n(ubmzqhvy(.)9yo 8F2 of 50 N, and F3 of 70 N, acol 8nynsymx-u .)c (zq v)(bh9ting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10a-y-fmb) hl;u:lp5:,8prq m*ut-srxi)qau v newtons can be combine to form a resultant with a magnitude of which*:t-q : layx vr5i)bm p,f;hl-sqmu-uau p r8) of the following

  10.06: Which of the following statements is most closely associate0aak.;jqc ma 7d with Newton’s Third Lawc aa7k.;jq am0 of Motion?

  95.06: The reaction for5/6mwx (7ki-dth4kcv5vl dl .r9 izq 2unyh/ rce does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator isvg lis)5 fneh h9o).gwpf(8: b98 djin accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational forcjs)8h f(pfwn95og8n ) v :b.e9idhigle acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. ,kp/n3tyt ;gw,ef v;a Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skw,e kgv;;/a yt3 t,fpnydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. nis9*e ckppn. (9b:f p The batterswings and hits the ball. The m fs ckbpn9(pe.ip *:n9agnitude 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 trqpaj/i ,+ow d1*gsx ;he 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 /,d* 1a jsip xqogwr+;table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an / ykjwkse+a z.e.mq(fi:tc :.pe7kg 8 experiment related to Newton's Second Law. The collec8 pse.tz m:w q /7j ia+ge.ckyk(fk:.eted 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 whil5k drqfwg;5 d;8 nvm9 )aixnx,e at the same time the mass of the object dvdxg ;k)i8,x9wfr55am;q nn was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from reswcd,9*(e 1 cf2un.eazqbghvb e207pft to a speed of 20 m/s in 10s. The magnitude of the net 1,n2.e*ca ( 2fhczevfpwgbubdq0e 79 force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mcj(h14y3m o k9jyv*wxass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the trx oyh*4wjjc m3y 1vk9(actor is

  99.16: Which of the following principles best explains why ll)ygov ou714u,wg2x1c2fr ycarge tractor-trailer trucks generally accelerate much more slowly)4lvfgu gooyrc71 cw y1,2ux2 that automobiles?

  99.19: A 50 kilogram 3sl 0tfs*g4br*q-oieskater 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 subsequent moti-st4qso3g0b* fr*l ieon?

  00.13: An object near the surface of the earth with a f0a dt3e- u8w*fdsc4ismurx : - v.pl0weight of 100 newtons is acceleratxcs0 .t- i euwffdamsrp: 0 l-dv483u*ed 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 rth yd+ h9u 6eww* aox+zy+8ue,est by a constant force of 2400 N. What is the speed of the caewu+t8h h+6 z9d*uyoxwy+a ,e r 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m-t.( c s(,rftvk4k9ty rrw1jb/s slides across a rough horizontal floor before coming to rest. The frictional (r(vskr1ytw4cktbjrft. - 9,force acting on 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 m/s slides 8.0 m across a rough ho(wu +;kjz.o d9 ueg+hzrizontal floor before coming to rest. The coefficiengo +z e dj.zuh(w+k9;ut of friction is:

  09.21: A 20.0 kg box remains tfhm;ch3c- m:at rest on a horizontal surface while a person pushes directly to thefh3; mh ctcm:- right 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 accelerate4m,wo,2b0 exah7.enrpn8os bs uniformly to rest on a horizontal surface. The h2, o,rs .awpn 0ebxbno874emblock 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 ice am u h2;e9wf7nnt 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 thnmeu; 9f 7w2nhe 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 itsnt-yb9 1 qbmp(g. ie(a brakes locked. 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 μ1igybe(m ta(. 9p qb-n .

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 stopk/lb2 1qj tw5+i6rjewrbfn* x-+(tuv by slamming on the car's brakes and skidding to a stop. How far would the car have skidded ifwvfujrxe q1nk6bt 2t-iw(+lbj + * 5r/ it had been traveling twice as fast?

  99.39: The driver of an automobile z8ba8m+u;p( 8 yzsvh jk gr1((v rb8tjmust carefully control each of the following devices. Which o(r zbv8hu;p ( z rmb+ jty(as8g88kv1jf 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 is 24000 ne+c iyc/+ vm 40qgss8gewtons. 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 sgs +0cge4cyv+ imq/8at takeoff?

  07.21: A box slides to the right across a horizontal floor. A personcwqb46kqvgi inn5y9a- ( (m. a called Ted exerts a force T to the right on the box. A person called Mario exea(k6qb-n9iqyw cgi (. v54anmrts 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 len;ud /yo u,h:loo7kx2igth. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly uo ;/,ldukiyh2x:o7 oover 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 len5x87qmc w1 txngth. Assumex7cmqtxn1 w 85 that on 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 cartrollt,vu px. rv (+hvh0l992mugu ls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the dirv.2u0xl+v 9,g(hhvlpt u mr9u ection 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 whqgnhc(w5oa,nl :ph 9;ich 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 ,:lhnc9 5n(ahq;gwo pnewton 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 agaitu -+xq ic+0 jvltn(ibz:;jl 5nst a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0+qcj -z x;+ i vttnjbl(:liu05.30 while the coefficient of static friction is 0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes64kgk adi-meeap5e/9 *q +gqa a lawn mower across a horizontal patch of grass with a constant speed by a paqggee9ik5+qka4 6-e /mda *pplying 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 f lv5+jvl8rx/c94k e ncrate on a table. Neither is moving. Which of the following sta k9evx4jc8 5fvlrln /+tements concerning this situation is CORRECT?

  06.15: A crate of toys rgcyx c+fck+td(uq40 )i l2h-g5bvj+h emains at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down gkxj) t(bhuq+gfchl-v45+0yi2 + d ccto the sleigh. What force is responsible for the crate’s increase in speedup the hill?