99.36: What happens to the inertia of an object when its velocity is doubled? w6ab 87ru)v c+hwcb nrpn(s.8

  02.14: An intrinsic property of matter is one that does no1: n1 mu xgj6iytakb-9t depend on the quantity of matter present. t:xajmyk9ng 6bui1-1 Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder restsv 95rbdh. +s*y n/z;ostjtq4j on the surface of the Earth. Assume the Earth has maso9;4z+n b *q jshy.dtsrj/v5ts $5.98 \times 10^{24} \; kg$ 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 is thw:v5t qp kvbu74r .hw:e magnittwp:54vvr7h wbku q.: ude 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 a+ 2kbkh )bftp0cceleration decreasef 0tkk2p) b+hbs?

  00.11: A certain particle undergoes erratiche04.0o etivqrrg k85 motion. At every point in its motion, the directionertv orqh 4i5.0e 0gk8 of the particle’s momentum is ALWAYS

  17.14: A block is suspended ) w/o tge 6-/:/itpz kyd+dpyjin 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 correctly identifies the Newton’s Third Law pair force to the force of the string on the)/i zpd+w6pj :gkeo/ttd /yy- block?

  07.18: In which one of the following situations is the net for.vgsri :di *g:n u.w srbs8,a5ce constantly zero s ,nibsgr*i rd.g:8as:. 5vuw on the object?

  13.28: An object is in free fall close to the ground. A personqnz giw 7-c*+77uxgxt intervenes and slows the object uniformly to rest. Which one of the followw7gt-z*ucgxx7i+7q n ing 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 ha kgz3fl(j: ak d8,h5ffs three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting odakf( fgfk8z5j 3: l,hn it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force z mq+wk l(50jl*o4i g 2z,zgufl+shb+ of 10 newtons can be combine to form a resultant with a magnitude ofuqfi54z( g+2mw+* zh lkl0,sz+globj which of the following

  10.06: Which of the following statements is most close /sn gep/1iu:l a)3rjily associated with Newton’s Th/ 3ajise)pl /n:uri1gird Law of Motion?

  95.06: The reaction force does not cancel the action force bek:at5-5yuhx8t wnf*t, ;sd qi cause:

  14.14: A box rests on the fx p an wps--3l .6pp,aoqi6.luloor 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 fow3o.pqa6-xa6 p sn-ll,u.i pprce acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Whi7luh byhq h/ zv):w32jch one of the following choices cor7 h jwu /:bq23)hhvyzlrectly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is tpki0 amtfx+am+ve r2.x tk8jk h;3*6whrown by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of p*vfweik8 arm;t++0j 32. tkka 6mxx hthe 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 is a 2z0hpkrrd72 0kja*nw calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that kwhjn *dr07 0ra2zp2k the table exerts on the book?

  05.06: The students in a Physics I class were iyux:eankqr68 zyva wyd-d2,7 gu/ 7*qj8om4 w n lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions4dr7wyv j:,n7 k 8z/d8yqx6w*amg o uyaqu2e- can the students make?

  99.03: If the net force on an object were doubled wisgcj; hbi1vfb*;kq*;mj x nk4 94/ixhile at the same time the mass of the object was halved,then the acceleration of the objec q/kjjfx m;skgi *xi944bbi*v hn c;1;t is

  96.15: A car whose mass veb*-wk (utr79/q3r v ghgum-is 1500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the cwt-vr( /m qrh 3k*bgu-g7 9vuear is:

  99.05: A tractor-trailer truck is traveling down the road. The mass on*l3d9zb 6g1;6tqf6 )crhwnlf 7cg:gllfhr 8f the trailer is 4 tf8f: q gr6d7h6* l)6 g9cl;lbnr1nzf ct3lg hwimes the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why lv t3mqm:i(g/. bb( 2 tbqqk6bvarge tractor-trailer trucks generally accelerate much more slowly thitbtvmm.:v 3qgq(/ 2 b bqbk(6at automobiles?

  99.19: A 50 kilogram skater at rxf,n, *j cs4e7+ ctonoest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocisfo+jno* c,74ec,tn xty of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth wilcs5 .eztnlz k619 no6th a weight of 100 newtons is accelerated at ezl.cl tsn1oz9kn665$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from resaus9ay;po 0l 18i d; tmm5/qufl x6w;l ec0bd.t by a constant force of 2400 N. What ilb.1d;mu5ld8yomq0t9sa axe;uil/ p6 f;0 wcs the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg blockf2a40e22l1sfb baw os *eav) 9nlvh8k with initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force a vk12f 9 ba2la20ven8*ebfho 4s)wsalcting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocixmfw-b1cws h y6) p(,ws(c* vsty 4.0 m/s slides 8.0 m across a rough horizontal floor befo cmhxscpbws( -fsv ,6*1(w )ywre coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on(uibpr/ f o8sx o4t20ml /3itb a horizontal surface while a person pushes directly to the right on the box with a forb0tr ltix2ufp(b/osi 38mo4/ce 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 acceleafgim..fcv b9/2x ,wlrates uniformly to rest on a horizontal surface. The 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 th bxl.waic, ./v92fm gfe surface and the block?

  00.21: A car of mass m slides- n63w kp hj bogqa1,(kswnilw(r: k)8 across a patch of ice at a speed v with its brakes locked. I-n jsw(w) (giqkkhra1b ok6,w:lnp 83 t 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 slides across a patch of ice at a speed v wit ovyx0h,7 -hofqo nh*-h its brakes locked. It then hits dry pavement and skids to a svon0hy-xo oh f*h-,7 qtop 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 ma9okx2*m 2ejt,.p 4hewg pi6ha kes an emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have9jwgxa2e46 k ht *imh.ppe,o2 skidded if it had been traveling twice as fast?

  99.39: The driver of an automobq79)bdq5kgur+p) zto 0ibgw1ile must carefully control each of the following devices. Which of these devices can cause an acceleration in a moving car?0 qogw+ )5 brkpqubi79g)dt 1z
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a r0lf) fu3cs:jbocket 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 the surface of the Earth atb 3ulff:) 0jsc takeoff?

  07.21: A box slides t8 p/)8lb ir5gf4rvedxgvz: y9o the right 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 givb9 v/g:p8d )yrf4e5zlr8 x 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 tc,wvbtegg;. 2sle b77 racks of equal length. Assume that on all tracks the roller,bgg7.bs7lte; cw 2ve 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 equaltfc+tfdh o a .4o-0jw- length. Assume that on all tracks the roller coaster cco0t-ajf .f whdt4o +-arts 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 the curved tr.xuj krn-4ffc;tf 0m/ack from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at poucn -ffjf0m/t krx4;. int

  02.40: A box with a mass of 50 kg is dr0quy2d51 ctm(fykpy(68u b)m p ;rqup)jz*zkagged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coef8q)u u0)b quypt5y(;r* zpk yd jp2mfzk(61 cmficient 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;-wp:bu.swx f,ah1wf 4qll 0p 100 N force as showb;,4lap sf0lwu -1.ww:qhf xpn. 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 after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizoz a1)c6ok f3qyntal patch of grass with a constant speed by applying a force P.kaoc1 6fzyq )3 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. Neither is movin/ u(kugvr-gji9*t;jtw 7mlie5+zg/5 ftm/c jg. Which of the following statements concerning this situatio k/5mgv/clg ; 9e/r7jiuj(+tm*utf j gi5zt w-n is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled up lo4g /zs:ha) ua hill with als:) 4huo/ azgn increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?