99.36: What happens to the inersnih( hj wu6+i3al:5d tia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on txq ,kio1b cv6*;ml2aahe quantity of matter present. Which of the following properties isx,lvio2*a61baqc;k m NOT an intrinsic property?

  04.16: A 20 kg bouldeg ai3 jkgt; ow8ye)/b8r rests on the surface of the Earth. Assume the Earth has masswk3g/g t)ia;e j8 by8o $5.98 \times 10^{24} \; kg$ 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 (y)6 7vh*fmtw5 hokslyktuelpm14 2:of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphe 1lv :*)( t4fthemo5kyhlu26wskmy p7 re? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible7ynz.2 sy5zan for an object’s velocity to increase while its acceleration dea25yy ns .z7zncreases?

  00.11: A certain particoqsbbp( hbp061f fm6z 00 mga5le undergoes erratic motion. At every point in its motion, the direction of the particle’s momentum is ALWAY m0bp6o5h baz0s0gffq b61p( mS

  17.14: A block is suspended in the air at the end of a strin-hemm q87en:5 h(hta tg 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’8 q h (tam:m7ehn5te-hs 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 constantlye2+5nmtus0b r jg ,jx(pgr)kuhs*lx 0.l- s /c zero on k,ge)gxu ll*5sr(r n /+. -pm txj0sh2u0bcsjthe object?

  13.28: An object is in free fall close to the ground. A person intervenes ancskz)pi3 w8rior6 o7:mb ;h4jac 59z qd slows the object uniformly to rest. Which one of the following stat9)ka4q6w5hicc 3o m8 jsi;zo zrb:7pr ements 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 has three f*7oy2 amqt79 fhgbk0avt2 5 neorces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acti07myage h*vt5 ka 2qto9bnf2 7ng on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Nx81 5b og: udnm;r/abwewtons and a force of 10 newtons can be combine to form a resultant with awg:r8mbo/ u5;nx 1da b magnitude of which of the following

  10.06: Which of the following statements wuhe,g5 :nh7f qat1h* is most closely associated with Newton’s Third Law of Motion?:hh 5 *1qgheftw,nau7

  95.06: The reaction force does not cance:h t;om4ey ,nvrd6vmrsu199b(h4wisp 1kx o,l the action force because:

  14.14: A box rests on the floor of an elevator. Tg.xqesuoi 2av3-)3n; uxh;i uhe elevator is accelerating upward. Which one of the followvxxu e-iq 3a).hn ;2iuus3o;g ing 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 downward through the air with conp;fuiml;vw;:.q9 s6 ;ka gy nostant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fallv;6akw;un.s; y;iop gqlfm :9?

  06.08: A baseball is thrown by a pitcher with a speed of zkmyf-zs3a9pc u04h,m7g ,lwa5 r/pu 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exertp,0 zar4w9/pm,hmu3gfs5y7ulzc k- as on the bat is always

  11.13: A physics book sits at rest on a table. On tov3*5ft d-8. ygpwut+a ijzcvo- c .v2wp of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Thir -di+avp cw 8 yuvjgf v3w52.t.-*zctod 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 conducti5 okss; o3g+/;tvgcsn ng an experiment related to 5 no3o;+/csg vsg;s tkNewton'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 the nm mkbm:m1,3egc ,;nesame time the mass of the object was 3km nembcem:g1m ;,,nhalved,then the acceleration of the object is

  96.15: A car whose mass3* ekxngto)s*dxpz:6 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 car is:o 6)**k eds3gzptxx:n

  99.05: A tractor-trailer truck is traveling down the road. The mass of the trai ,p*izerk ydk6d f4i 6h71;oenler is 4 tikn41 z * redfe;ki7i6p,h6ydomes 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 jxug6dao0 m. o, 8em2tlarge tractor-trailer trucks generally accelerate mjuogt,2 8meamdo6 .0xuch more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink thg8p2b)q4rep irows a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. W)ep i4 rgb28pqhich statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons : 0(vm c:cj3ale1hsetxi0)i npc m/2eis accelerat vi 013acnje2e)m hcx sl0p/:cte:im(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 rest by a constant force . *le3t-d 1eccv(ho kwof 2400 N. What is the speed of the car 8.0 t*dce.e( 3k 1-h wclvos after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizo :y kvwh( u *i0g5nov:yho;mjq-9 vac/ntal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the b( acgv0/:yi m5h*y-uw;9 ovo :qkj nhvlock slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m )9wb/e3tti tw across a rough horizontal floor before coming to rest. The coefficient of fri3/t )i9e ttbwwction is:

  09.21: A 20.0 kg box remains at rest on ni6 t46f/f8lw y af4snt 13bsea horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between 4sne6w/sf13 n 4tltbf fy68iathe 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 acceleg m)c6l *;fjlfrates 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 surface and tjgc6m) f ;lfl*he block?

  00.21: A car of mass m slides across a patch of ice ao6q: qt8fu-x;i8pk drt a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic fr:rfut8d ko6xp 8q;i-qiction 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 st61;rd:cri 1v5 j ak)gfgsd:kpeed v with its brakes lk5d6sagg ki 1)j:crd:r 1t;fvocked. 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 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 a)srv 4umjwc ;.b46xqw d,bv.car's brakes and skidding to a stop. How far would th;jdsubcw 6m4a,vq4 ..r)bvw xe car have skidded if it had been traveling twice as fast?

  99.39: The driver of r4jdrd ayptlaxxs:+8 d:52 - qan automobile must carefully control each of the following devices. W4rrjsld a 85+x:d-dtp qy:x2ahich 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 2 cuas;(9s(-auwpa x-. hus 43 wn)lwfx4000 newtons. About how much (x )uu3wh4c-a-p(xual w9 sf;s w.santime 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 horizontal floor.tc0k/o g,byj9 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. Give/gcj 0oybkt, 9n 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 thre axns/4 x(yze;d7of1 ae roller coaster tracks of equal length. Assume that on all tracks the ro yadx7;/x(1an zfeso 4ller 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 equal lengsyv )dpj:5* nhwoh,- tth. Assume that on all tracks the roller coaster h)d5tos-vhw,p* yn: jcarts 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 trac8w:kcp ljtslb4 4n.r,k from point A to point C under the infb 48,tc pklrls: j4.nwluence 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 the floore7fbn9s* /jjw 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 thebjs 79*ej nw/f crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initial;b qyyycy-6u-ly at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while th byyy;-6uyq c-e 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 jf7 4o.sgdd.(mgfmpy,d a 5g )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 magnitudes of the ma dpf(gd 7)om.f 4gsgj5 .,ydvarious 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 crt*itgym8g/q eob ;g/r)ay d4 .ate on a table. Neither is moving. Which of the fdqgm;y4t)ie 8bt*a g/gy./ro ollowing statements concerning this situation is CORRECT?

  06.15: A crate of toys r )pevwnl+-.bwoin4 4+fe jl u4emains at rest on a sleigh as the sleigh is pulled up a hi w.pjulv wfln4-e) 4+ie 4o+nbll 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 hill?