99.36: What happens to the inertia of an object when iq0mz. kc/rdjtn8/t da (y 8(tzts velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quajkw i6v9 :;+6ns +-pzzx mnloontity of matter present. Which of the following properties simwo+v6n + 6 -lknzoj pzx9:;is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assuke2m :o qan-0bme the Earth has maean2 -: qob0kmss $5.98 \times 10^{24} \; kg$ 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 f jo+o/ 4fm0kgthe Earth. What is the magnitude of the gravitational force acting on th+0 mfg4ok fo/je 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 whin i+hdnfzww 8+dgbm (+cd-07tle its acceleration decreases?+ f0+( gdnh8 iwn7- wzb+ctdmd

  00.11: A certain particle undergoes erratic motion.5(h 1s+2aruv d-dc twg At every point in its motion, the direction of the particle’s da2ug+ wr5chdt- (vs1momentum is ALWAYS

  17.14: A block is suspendeppa+j g ta;4 wmh/c ;di+rq-2ed in 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. Dci+r m pqeaa;w+p-h2d;j 4t g/uring 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 situationshsm*imx9 8ru* is the net force constantly zero on t8hu9x*msm* ir he object?

  13.28: An object is in free fall close txu 5og9s*b 0qk9oop1eo the ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true 5o19qpbukxo*go90 se 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 N, F2 of 50m tfvgf p06(i2 N, and F3 of 70 N, acting on6vmf fp2gi t0( it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine mmj.x-op3k,9:jxhde to form a resultant with a mpx .k,x9 o:jjmm-e3dh agnitude of which of the following

  10.06: Which of the following statemm((j3e/wed , ebtxlg yv 3qd4*jx .v3kents is most closely associated with Newton’j3vxmg3 e lv/b4t,ed j*qex dw y.(3(ks Third Law of Motion?

  95.06: The reaction force does not cancel the action force bggeq2+soxu.8m*ho/rogs p ) ve(-f2oecause:

  14.14: A box rests on the floor of an elevatordiluwawi0d+ve: d07ghj0u1*h pbp1 7. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the0+1hp1wu ev7gdiba:d d lp*7ujw i0h0 gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the airdctr/ ;dpu+*cqfc0w); p /e pt with constant speed. Which one of the following choices correctly describes the Newtd*cpcp;c w/; ftpdqt /)eur+0 on’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcheru3 9fmqn9qllbh 7q7 a.ai(p*k- n ah.m with a speed of 35 m/s. The batterswings and hits the ball. The m(bu ihqan3h*. al aq7mp 7 -fq9kl.n9magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits ats wt54kyz n1 k1rsg/c8gq-lx3 rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law paik/5qrsc8st 3kz l-gwy41 gx1 nr force to the force that the table exerts on the book?

  05.06: The students in a Physics I c4 mpldwz-)j; n6adpy +lass were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From thid zdmln;wp+ )-46apj ys graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the samj5vfry+;6zes b2t-x a e time the mass of the object was halved,tj;xz er+ty -5fvas2 b6hen the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated usvku -4hzjffbkbz ;61sk py09q/u45sniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net forcukszsfb;f/94sk4hku5vy 01 -z qb6jp e accelerating the car is:

  99.05: A tractor-trailer truck is toz)l b( g -tsjrr;(ds7raveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor ;7drszs )r((-bo tljg is

  99.16: Which of the following principles best explains why large tractor-tra(:leb 12dy0j .9 wlo-/hpl9sak fiooriler trucks generahoryld0 l wf:jpo bl.-91si k9e 2ao/(lly accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictio6i7 zj9ip7v2pg-)fsv x kx9ksnless rink throws a 2 kilogram ball, givis i skx79vp )6xifzvk9p7gj-2ng the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 ne zs*;n/lpaer;wcwu8 qs)*8sm(eni g+ctoz,1wtons is accelerated atec/mzsn( n+ 1l,8ocsuer8 p swi*wtza*g) q;; $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg fq9/zo5 ,srpvis accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after beginning?v,pr5os q9z/ f

  98.32: A 3.0-kg block with initial lfwz h7y :4/afspeed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.7yhazf :f4/lw0 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 roup+( g2q7txxn*mkddfy 6 9o3pvgh horizontal floor before coming to rest. The coefficient of fr+ vomxkf dgxqdn 6p9yp732 *(tiction is:

  09.21: A 20.0 kg box rem(im6oy g wtvy+ 69f9nk(y ofr6ains at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the sur(wy9o(gfv 6t + 66mkn9yiryofface 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 aca866pdt 2v*yo.she -*up9j wj/wsn cjcelerates 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 the surnt*p-/ awjj9s d2.jvw6*8 s6yu epohcface and the block?

  00.21: A car of mass m slides across a patch of ice at axugnkd j*x -r9(d4wn4 speed v with its brakes locnxjd9-xw (4nk4r dg* uked. 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 slides across a patch of ice at a speedd7za(4h3 ssfkw-fkd o-dg6/ j 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 tires and the dry road is kkd4z3awjfgd6f (sod -s-7h / μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes vb 7t5zysx4* vr-n0 v*v yair*an emergency stop by slamming on the car's brakes and skidding to a stop. How f7nba-vyr*y**ir4vvts5v z0x ar would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must caa ktnl1;9nwa/q(fu 2j refully control each of the following devices.uq(1ta ;nwlf 2/nk j9a Which of 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 /zb)c 2xckl9)*lb,uhd tx p )h tkn:72s3 tscw24000 newtons. Abouhc, /))c7zc)spw*x db2u9 tk2lhb3n:x ltks tt 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 takeoff?

  07.21: A box slides to the right across a hs+2 :.hwez9 uwe1ds uaw2e xv3orizontal 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 that there is friction f and the box accelerates to the right, rank the sizes of the2weewux3+9:v. e2sz d1us ah wse three forces exerted on the box.

  02.27: The diagram bk/h( q.edy* f.q.uz9m4mcl fdelow shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from reszhe*uqq. dm mlfk.9yc d.4/(ft 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 *r/x6tvnfjxhcx; ,q 1three roller coaster tracks of equal length. Assume that on all tracks the;x1 /6jfxrhq,ctv x*n 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 friciu7l 4x8swr:g tionlessly along the curved track from point A to point C under the influence of gravity. What would be the direl:u8gi4sx 7 rwction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across thf29f, g-navbq e 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 force on the rope is required to move the crate at a constant speed of 20 m/s as shown in the di afn2v 9-gfbq,agram?

  04.40: A 6.0 kg block initially at rey .*3i6 *ifuskdnr z1) 7axazmst is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.3uz.7fmids3 *akn)y i zx*ra160 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 ; xvw1npl g6r2x;hp*ga 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 m 1 hxx2g*;l6 wppgrn;vagnitudes 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 a6o mel; 41mnc5f klc:q table. Neither is moving. Which of the following stkmm:e lloc1n5q ;cf46 atements concerning this situation is CORRECT?

  06.15: A crate of toys remains at m+/mr;qp ijw8 rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What j +/8 mrmiqw;pforce is responsible for the crate’s increase in speedup the hill?