99.36: What happens to the z1fd75 oy2v6s: : rer. auzbscinertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that doesfvd;m;h., eou o:)fju not depend on the quantity of matter present. Which of the following prope feo.om :, uvf;d)hj;urties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the su:bl dee nyv8,:rface of the Earth. Assume the Earth has ma8ny:, :evlbd ess $5.98 \times 10^{24} \; kg$ 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 t po6n3, xvgbeq9gw+*jofe, )Earth. What is the magnitude of the gravitational force acting on the earth by the sp3oen vp,9),qwe+ xg*gfobt6 jhere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while it ullw 23h0y)rfs accelerationwu )23yflrlh0 decreases?

  00.11: A certain particle undbsp61t(xclcx- tv i asf 4zhvw )78g-.ergoes erratic motion. At every point in its motion, the direction of the partic-8stp(isa)gtxcbfzvlx 4 vhc.17 -w6 le’s momentum is ALWAYS

  17.14: A block is suspended in the air at the gpw /2c9t5pu.azxac2end 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 stringx w c2 2auzt.pa9gp/5c on the block?

  07.18: In which one of the following situations is the net force constantly a+n1 7fp56; dcjbkycrzero on 7+fpbn k;ccdr156jy athe object?

  13.28: An object is in free fall close to th2ci tc 5*zdxx3v) 4ymme 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 object as it is being stopped by the person? The magnitude of the object’s acceleration is ai xm *c)xc5dvzt4m y32 and the magnitude of the acceleration from gravity is g.

  98.03: An object in e40qjfs : 5, 4s7:asulun wo*izt 0ibhtquilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, actintqbslu :540a0un wijosh74i tfs z, *:g on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Nb+(5 n pl3 a2qpls2ovbewtons and a force of 10 newtons can be combine to form a resultant with a magnitude of wh5vs3l(qnb p2lo2+ bap ich of the following

  10.06: Which of the following statemenn:+:ebjlnda /y :;+skwm 8twmts is most closely associated with Newton’s Third Law of Mon da +:tbjm+sy :;kln8 wm/ew:tion?

  95.06: The reaction force does not cancry0x/4oj7d r sel the action force because:

  14.14: A box rests on the floor of an elevator. The bxz6 xqbn* 1x8/i6vgdelevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational qx 8*6 b61xz gb/xvndiforce acting on the box by the Earth?

  15.15: A skydiver falls downward througbd002 6hw6op0httcufql w6 :gh the air with constant speed. Which one of the following 02pgbf 6uhw0:h0o dtq6w t6 lcchoices correctly describes the Newton’s Third Law 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 b u1npafaau(q3g8 : b.m/s. The batterswings and hits the ban.: aa3u1b u8(q bapfgll. 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 i+fx607 o)dkzt p lbwa/s a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pai k) +a6xot/bzd70 fplwr 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 eg hn5swn ; n1l6rs0ozsvg *77rl phsy3;lcu49xperiment relate swhn 46nons7 v r5c1; pzs7yl3r0ggsuh*ll9;d to Newton's Second 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 an object were doubled while at ore,jqa oxnw79 r:e ib;i3pj109pzm 1the same time the mass of the ob97q i: 1,z9pnwpr raoomxje;0 eib31 jject was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly a7k qeodp4(fpgknfu5 .f p rd9fc2- ):from rest to a speed of opgdp4 f.r29ff(5n 7cp fueqk da :-)k20 m/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling dow8c wml79pe*2j dp .kzun the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, tmu *z l d7pj.8pewc29khe force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-:vj d*o7 gmn/ro..y7dam w0r( 5kvneer agc9:trailer trucks generally accelw jnevo rm cmdoadg0vrk 5g7(raye7n9 .*/. ::erate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throwss63;b(s (k2k13s;totffnhc lv4 v npk a 2 kilogram ball, giving the ball ff2((bn k16;3sss vtlnc 3t4 vh;k kpoa velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surf64x4gn9ekavsch 9 pt5ktwj8)ace of the earth with a weight of 100 newtons is accelerated g p4ts9ahxj 6)t98e 5nk4vwkcat $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass iaq;p a pbet/+ ommm086s 1200 kg is accelerated from rest by a constant force of 2 ppmbe+68o;/ma 0amtq400 N. What 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 horizon uchot/:aay 27tal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming to ruc7a thao:2/yest?

  95.38: A block with qndp3lt4em/5j d u fy7m6 f-i+initial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. Thef4nip7l3/ -m6d 5yf tqe+ jmdu coefficient of friction is:

  09.21: A 20.0 kg box rz, iiko9h)-jsxx)-f rtii2e3emains 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 3 is,-)kj9x 2i)eth-x iiz froand 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 ac,9qpr bh,/zj 6j q:uiqcelerates 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 repres,6 bqp /9hquqr zi,:jjents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides n bfjj05,z za:sffeq+9z+ r9n across a patch of ice at a speed v with its brakes locked. It then hits ,jj ffen90s+qr9a b znz+5z f: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 with its brakqdq (7 1 g egbs;09vtrp)x:aqq. hbjo3es locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires andeg;aj1: 9p qbs q (tgqqov.x7drb)3 h0 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 emergency stop by slammin g43r8szz av81n imte*g on the car's brakes and skidding to a stop. How far would the car have skidded if it had b r3s8 g ta8zn1i*e4vmzeen traveling twice as fast?

  99.39: The driver of an automobile must carefulyo*hm- 5k.)-uyrb*m kvjfh1 rj61 wbaly control each of the following devices. W 6k1m bfuh-r*kjhr*ay1.5b ojw-myv) hich 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 roc vkljw .9-,h:txl:dkw-td 7lqket with a weight of 15000 newtons is 24000 newtons. About how much tixdkwh-t 7,l.k-l9 d q:lw jvt:me 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 tob *qokkfeo55 0t,n;mww 4yg4o 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 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 enkb o545;t0owe*wk,fqmog 4yxerted on the box.

  02.27: The diagram below shows three roller coaster tracks of eq,:jg:9 yx shn0-wurp iual length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the ynwh,j i9::srxgu0p-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 lengt tiq.8n88ln4pt1fx akh. Assume that on all tracks the roller coaster carts start from rest at the same elevation a 84fptn8a .n81tlqikx nd 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 rollere1 v 2gtv jlrbw.gu:c0: 9;bducoaster cartrolls frictionlessly along the curved track from point A to point C under the i2v bu begu109g :tcvlwdrj;:.nfluence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across t j;3mm7iocx(2tr-zw j lx, q4 7eziez gqkt,54he floor by a rope which makes aik-3g(m74e rm zqj7oe2qx,,xzw z tlti4 c5j;n 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 diagram?

  04.40: A 6.0 kg block initially at rest is pushed am k por.ba v4ts8*8p)ogainst a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 whiloop v8*tk.sp rbma48 )e 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 horizonnlck e wqb(l9 l3 2puo*h:gm30t6i7 vqtal patch of grass with a constant speed by applying a force P. The arrows6gcnm (:q2llhl3w kb tv* 0 73eop9qiu 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 ;cbn,berb3:j,rwtb l8 5 m(rg table. Neither is moving. Which of the follow( :l b, ; brg,wjrr5m8b3centbing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at 6mdoz a*sng 9v, ;dgy pb4g67imhl)d4 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 force is responsible for the crate’s increase in speedup the hinva,dbmpd 4lyh7 moz6 9g ) g;6g*ids4ll?