99.36: What happens to the inertia of an object when its velocity is dou 4j-q. watdyk;7 wolm5bled?

  02.14: An intrinsic property of matter is one tvk7 je(h, rw,ql+ 8gunhat does not depend on the quantit8kwn+qrl 7(, e jhvg,uy of matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surfbw) yx7al 648h ydkj5nace of the Earth. Assume the Earth has mass ykn 4bl7awd)jx65 8hy $5.98 \times 10^{24} \; kg$ 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 theagm:g/drbn x u00wq +- surface of the Earth. What is the magnitude of the gravitational force actix-d+ w/0 nargqubmg0 :ng 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 in05* ybzmi3 inycrease while its acceleratio 5z3i0bn*ymy in decreases?

  00.11: A certain partia )7 jqsc:ql.wcle undergoes erratic motion. At every point in its motion, the direction of the particle’s momentum is j.)wcq las:7q ALWAYS

  17.14: A block is suspended in the air at th1l p,y kjyaz09ht vd/:0x key0uhfq7+e 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 followinglqk/ftp :9k7y + u0,xy hv1 00adjezyh 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 force constantlyj zkb6;ts;riu5fjq(a9m6 2fmazw q(6 zero on the ofu5 ak;ritfm9 j6 qs6 ;z2j(z6a(wqmb bject?

  13.28: An object is in free fal5ku7gz9hv74 vlqai/sl close to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acceleration of the objec9kv4ls q/5ziv7u h7agt 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 50 a ;,g3e js1uiq 9d6 ouimyem/:N, and F3 of 70 N, acting on it. The magnitude of th/6,y;1sduo:qiu j9 imm g ea3ee resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can c8u1uqm: 6 yegnrx :za4za- 4hbe combine to form a resultant with a magnitude of which of the followinqn418g4rmycxu:6au: zze ha-g

  10.06: Which of the following statements is most ff:u m0zdgyg hl4ps/ra5ii73;mk -* uclosely associated with Newton’s Third Law of Motild 307hg /i4-gkizs up *yruf f5m;m:aon?

  95.06: The reaction force does not cancel the action +b ansk8dg.of*,-f qpforce because:

  14.14: A box rests on the floor of an elevator. The elevator is acce198 e-hr wkijilerating upward. Whih-iijw 9k81er ch 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?

  15.15: A skydiver falls d tzmpnbxnppr y* 5d/ 0i).t.h0ownward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law0bn y p tdhip.05txn/r.)*mzp pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s.c+5c 4f myf4li2gtz /v The batterswings and hits th5ltvcmf42 4i g+ /yfcze 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 bookp*rkvtxd)39+ jtwn2e m 0ah 2v is a calculator, also at rest. Which one of the following choices is the Newton’s Tjvek )m02ad9ph* xv3w +r2t nthird Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an experimp,2 * petd1 *n,scwn(-bfmwtx ent related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can t2b wp t* (1,ec-dmt swn*xnfp,he students make?

  99.03: If the net force on an object were dou7x bumk34 kg5hbled while at the same time the mass of the object was halved,then the acceleratk 57xumbk 4hg3ion of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from r3iqhh r4c)bx7* fbh e9est to a speed of 20 m/s in 10s. Thee7 qr 34)h*hic9hbfxb magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is travl*r1w,f2oy2t g +stir eling down the road. The mass of the trailer is 4 times the mass of the tractor. If thwttr+ 21y *,rofli 2sge tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the cyou ;/(gx4 5o :b9*pladzi bmfollowing principles best explains why large tractor-trailer trucks generally accelerate much more slowly that automobilbgom:9/yd;x p4zl5c o u(* biaes?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2urfv3 ,z* jf dzv *;odr-p(fc2 kilogram ball, giving the ball a vel dzo,3*;vf j(c-d*u frf2p zrvocity 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 nj88 4pgp :)pai-w+nchz8gdx zewtons is accelerated -zx8 p )c:gzn4i pd8jpa wh+g8at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg ki ; cf psz-9;i,zmer/m 8iim+is accelerated from rest by a constant force of 2400 N. What i, m9eizikips;;-mmf 8i/+ rzcs the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial spe mlsmx ea)apab +a44b2 hk,oa5n2x k+4ed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force actim4nx+2oa l e5 aksmhkbb,xa4a24) ap+ng 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 acrossv/ fyoqt16x7 o+u9smb a rough horizontal floor before coming t o/mux17v 96o yb+qtsfo rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface whzu(q,2v uj9 vgf)j3swi ;6lkbile a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the bos2w 6v kg,;ui9u(z 3b)lqjjfvx 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 accelerates unifornhwi/o+0d d yx79 7i03qvtp romly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choicesr 79x0qt3v0 y +noiid/dow7 hp best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m sli6 vewg fz8robocx9.-6 des across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in acw968er.v zf 6-bgxoo 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 atjs(dr;jxl9yvm +x2 0 ,lt n3gm 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 the tires and 2jdtrsm+ x 3n90;m gjy, (xvllthe 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 ca*z kj;g,tgp-:nvs. m jga95vkr's brakes and skidding to a stop. How ja-*m5zjpg.nvg;s t9:v,g k kfar would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile +wmx6ki gj5*n,9nu nciv25oq must carefully control each of the following de9g,jwk +uixiq5n6vm2o c*5 nnvices. 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 w7lzb4ig+y qvt:08ct a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase +z0:t bt8lgw7vcy qi4the 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 horizontal floor. A person v/od6a 7wnnovs vt/ .4called 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 to/4twv6so nvn. v 7d/ahat 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. A /jv1t9zv i9alssume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks ztlvv i1 /ja99to 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 r 8ud:k zgllgt7rp 4; +as4dtl0oller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over th8dl4 0 tl;ks+a7lg4gpzt:udre 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 trackwkvnk ,nu bhz8(/,b+ .ujp)y s from point A to point C under the influence of gravity. What would be the direction of the cart's accelera n(uyzbvw nhsk ,,j)8/p. ub+ktion at point

  02.40: A box with a mass of ;e/3wb1y eky/ jd8maw50 kg is dragged across the floor by a rope which makes an angle of 300 with the horizo1 8;yew/bw j ayd/mke3ntal. 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 diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall bqa b(:d5ljc,lx:* ) jmjxhg-by a 100 N force as shown. Thecoeffxb:g-,dq5j) x: h*jlc (jbaml icient 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 horizontal patch of2zj /lih tv5e; 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 varj; /ivz5e hlt2ious force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a tuk* h9z*fmbyjeh d2 ;:8 f/ ewxpo)ic:able. Neither is moving. Which of the followin)bu em 9wzedho*8fc/k pf*hy ::j2ix;g statements concerning this situation is CORRECT?

  06.15: A crate of toys m2wi +uc.1wc( skq;alj gv5n*remains at 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 for1+ *;ius(w qgvm2ln5ka ccj.wce is responsible for the crate’s increase in speedup the hill?