99.36: What happens to theemom :-eo fv-* inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend y7 y5o; zge;faon the quantity of matter present. Which yf;ze ya57g o;of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of thwo ozaxc3 5*q3e Earth. Assume the Earth has ma*3c xz5q o3oawss $5.98 \times 10^{24} \; kg$ 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 t)7)b /p gbupopyex95cz fsz. /he surface of the Earth. What is the magnitude of the 7zpz pyb/g).osbp uc5/ xe )f9gravitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible fllc),titb s / o5gqy-5or an object’s velocity to increase while its acceleration decreases/l5 5gsity-l tqc)b o,?

  00.11: A certain particle undergoes erratic motion. At every point inzc ., ur +9vtlswtn)5l its motion, the direction of the particr9nlwc).vzt 5t+l ,usle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string zq 03eibzek-hp2.+q+ bfb5zn held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. Durqk 2 5h3p0nz+z.b f-eibz+ebqing 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 sighm sffaxz*tz e/1 -+(tuations is the net force constantly zero on tz/ 1*xe +(hzffatgms-he object?

  13.28: An object is in free fall cszebul- ks4 d*u1y e 3t75fzo;lose to the ground. A person intervenes and sl y tub7-;oee4lf *s kzu5sz31dows 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 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 50qr8f 31vecvakp :7: resl:m1t N, and F3 qpf e::kr v1l73v1:csmr8 ateof 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and pjliiyg)+,0e r nhc/n hd40.qa force of 10 newtons can be combine to form a rdl j0i+4 gr.hcy/ e,p )hq0ninesultant with a magnitude of which of the following

  10.06: Which of the fol (+zfdp rzy,,, hgow:blowing statements is most closely associated with Newton’s Third Law of h +wfg,, z,bzdryo(p:Motion?

  95.06: The reaction force does *4a n:nnm1ndw not cancel the action force because:

  14.14: A box rests on the floor of a*mdc u01ji2 mat4q c-gn elevator. The elevator is accelerating upward. Which one of the -4qtiad1 0mu gj *2cmcfollowing 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 constant sp/cmxk m- 3 ziatv,hyx5+e/ -aqeed. Which one of the following choices ka--/c q, x/ my3 imzth+v5axecorrectly 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 m/s. w38 9uluhmawqbf 4;o( The batterswings and hit qwb8m3lfuh ;o94w( aus the 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 book is a calcu77i.dcf z:wkqch :g2clator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the foh kdgf7.iwc::q c 27zcrce that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conductingtkl,;ms h14fvd2wy wkt 0c;g: an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusionstyw ls0w;ckh4mk,fgv 1:2 d;t can the students make?

  99.03: If the net force on an object were doubled while at the same time the mar2lpqs b)-b- lzj/1vdss of the object was halved,then the acceleration of the object 1l zq 2sv-bdp-l/bj )ris

  96.15: A car whose mass is 1500 kg is accelerated uniformly k l) mav)oj+.ngb2p *nfrom rest to a speed of 20 m/s in 10s. The magnitude of the net forcej*n)v o)a.gmkl+ pb2n accelerating the car is:

  99.05: A tractor-trailer truck ispq7z/ qwrk4bbq s9k8d,, vj1y traveling 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 tractrkd7qp9,b 8/q jqbkvwy14 s, zor is

  99.16: Which of the following principles best az6yyg)*+egzexplains why large tractor-trailer trucks generally accelerate much more slowly th* +y)gz zae6ygat automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink( boujucj 5pn-a9*1zhj .7yhk throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s.hj*jz1py57u(u -.hb 9najkco Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with 3 v52+jlzbhxd 7c/+) e,osmo8 d qbilaa weight of 100 newtons is acceleratedso3i bd5,/lex+b8hclq)+ o7 jadvmz 2 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 const iwzhnzlt87n )x+o e,)ant force of 2400 N. What is the zhzn+ io w,n)x7lt 8e)speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s sxw5(dki n3ml 0lides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide bem0k w n(3idxl5fore coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rough horgy /5)i6uqk0gjobfg3:umif- 2vhm3 lizontal floor before coming to rest. The coefficient of friction 03oljmb6ugu 3fy /ig:i kgf52 qv) m-his:

  09.21: A 20.0 kg box remain/w q7swyoefa9v1b -+q s at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60wf1+v 9-y7ae oqbqw/sN. 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 accelerates uniformly to rest o9c1ot 3ew8;numl czt6 n 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 the 968m1z coc twltune3; block?

  00.21: A car of mass m slides across a patch of ice at a speed v with its 4 bv;wvq ggd*fs07w s5brakes locked. It then hits dry pavement and skids to a stop i4v ; fg5g7ws*bqw 0sdvn 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 brakesh /ca gi, z(nf78)4kqzzmvb ,e locked. It then hii4/ ck)z7, ,zh(zqbvf8 aemngts 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 t0)nicdmba*+x fn q0l; he car's brakes and bc0i x)0aq lmn;n*f+d skidding to a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the followin j1c3(x3btyqj g devices. Which of these devices can cause an acceleration in a moving cabc 1 (j33qtxjyr?
(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 ne:ea*x+*azpg x wtons 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 t :azeag* xp+*xhe Earth at takeoff?

  07.21: A box slides to the right 1 5o/g1raovm/opzi+nlwk3 q3 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 lefpz/ or3o qg35v/nkl1o a +iwm1t, 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 rollt;zvu0pe(h6r p,1kt yer coaster tracks of equal length. Assume that on all tracetp,(htuz1k 0rp vy; 6ks the 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 be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coaster tracks oz/a1ud eg5n 4u 9xhdn7dwubf ca2.,r*f equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly oudfhax.9dcug* 5e1wnu ,drb 4n a72z/ver 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 fu,xyoki 6h :6drictionlessly along the curved track from point A to point C under the i6dx6uo ,: ykhinfluence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 5*yq9ilnl r5o3 0 kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following woylqr9 *5 lino3uld 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) a 6pkkv;. sr(pshb.s is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What6(p.h krss;k.apbsv ) is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lf(tt1dfjgu u22f2b p-awn mower across a horizontal patch of grass with a constant speed by applying a force P. The2 uf2-fu(f1p tgjtbd2 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 agthv)m:-t 7,kfgep4kys -isl c7jez 9 4ainst a crate on a table. Neither is moving. Which of the following statements concerning this s4ss)4ekjvtm9f7yi -h:glpeztc 7k -,ituation is CORRECT?

  06.15: A crate of toyst; -ljyelzb,+:y j6b* zloml);+tgj t remains at rest on a sleigh as the sleigh is pulled up a hill wez* +)ybt; ,b+y ljjm-lzg;jt:ltol6ith 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?