99.36: What happens to the inertiaz eqi-c818q872*gm vqoq;uhu vmay r4 of an object when its velocity is doubled?

  02.14: An intrinsic property of *,kp5 q9*x mr jfcqp8umatter is one that does not depend on the quantity of matter present. Which of the followin5qmx*r ujc9k pf8qp*,g properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on thr).p8v+ :x;anvqi fhnmo4vy8e surface of the Earth. Assume the Earth has mas p.q)8i mx avvyvon+n hr8:f;4s $5.98 \times 10^{24} \; kg$ 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(knax rft :s;+ +ujnx+ the surface of the Earth. What is the magnitude of the gravitational force acting on the(x :+ trkfn xuajns+;+ earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an objectu1 c gjt:e)9zrpfh/rx,qa: )4dndu9g’s velocity to increase while its acceleration de1qrxgjfea,tn49gdup9 )d)/ rz: :cuh creases?

  00.11: A certain par6f ltkxv4 h(.pj3 1 dwzx h.wl/3,jvohticle undergoes erratic motion. At every point in its motion, the dirhjv1whj (.x3f4lo.xtv 63zwl ,k /pdhection of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a stringjrg(utg (- sd:0cpq n0 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 correc: j -gup0r(tgn0dcq(stly 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 7x5em wc11y1als l)btforce constantly zero on the1wes ca1mxl1tl)5b 7y object?

  13.28: An object is in free fall close t6q f 645tvo1uy.zlmoc1f mv 8jo 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 accelerat1fmu.4 tzo5qjfvy mv1o6 68clion 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, Fr cilpgf8v ;y4 8 b13xfh8,oqr1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The maggr8lp,y8x8fr4hv 1cqi;o3bfnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons cl2cqvy ta+ : eg6(g)loan be combine to form a resultant with a magnitude ofglay6(v l:q)2ceog t+ which of the following

  10.06: Which of the following statements is most closely associatedmc l72q9ayr .z with Newton’s Third m7 ayrlcz29q.Law of Motion?

  95.06: The reaction force does not cancel the action forceuk jit9nk3j. iu9zq35 ,a huj0 because:

  14.14: A box rests on t scgig,l+g5 xqz)t6x1he floor of an elevator. The elevator is accelerating upward. Which onez x)i c15tgs, lg+6gxq 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 downward through the air with constant sp cjy autzb/+t4-ee (iae 89j8leed. Which one of the followiu/+4 l(btai-jt8y ejce9zea8ng choices 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 m/s. c n2/xyv+4pk2s6 n;pbaevwt,b(: k zaThe batterswings and hits the ball. The magnitude of the force that the b 4nbpcpa,2/yn6vtka (+evb;s: kz wx2all exerts on the bat is always

  11.13: A physics book sits at rest on a tableorap77d/ 8k4 jo3ob n5qe(hek. On top of the book is a calculator, also at rest. Which one of the folloe7n8akbho4 7(pj5/ro 3 kdeqowing choices is the Newton’s Third 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 conduodtz(+od 0p q0cting an experiment related to Newton's Second Law. The collected data 0(ozd q+pt0do 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 same time thenc45 )4/ 7brlb0olir-o 0peltuwemc5 mass of the object was halved,then the acceleration of the objlb u)/le0mb5cwn4ioc5lr oe t47p-0rect is

  96.15: A car whose mass is 1500 kg.eifu6;(d dswd )umg:uq1yt : is accelerated uniformly from rest to a speed of 20 mf(q)umu de; gw1td.:i d y:us6/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the traillovlonsz.gluf37.gf9 8-o:yer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor igsofolo .v fl 8:nu9 7l.3gy-zs

  99.16: Which of the following principles best explains why large tractor-trailer1j+55tph kaqt)-z c,p p1swzffd*9gu 1c19quppwg z*5tfz-pj)f,ksd +a h t 5trucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless ri8z chkrm ih**z11 uj9knk throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Whichju98mzc 1zhk*kh1*r i statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 3y:xoe3 :o0ci pk1tdc100 newtons is accelerat1pc o e:td oc30i:3xyked at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is a 3lle/(ysuu gr.)sat+ccelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after beginnr.seysa(+ul3g /tu )ling?

  98.32: A 3.0-kg block wit xhu k i,ijlw6o3v l7d/y.bt02h initial speed 4.0 m/s slides 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 before coming to resodltj 36 hv/l bw,7yi x.u2i0kt?

  95.38: A block with initial velocit7q . sksm-8p516ur:sjiv5 lsb sewd+fy 4.0 m/s slides 8.0 m across a rough horizontal flooe:7sd sjfs1um -8k6ls.+vi 55 sqwprbr before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box re-lmnwya/rmcz w o.qk-6hax /*ry4n*8 mains 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 ym/ *mynl xa.awwkco6qn*z --r48h/rbox 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 o5 y74 aby,dwukuz0;stwgf (; ln a horizontal surface. The block trav,y bu z;7fdaw yksgwu0t4l5;(els 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 block?

  00.21: A car of mass m slides acr3hd bk9tmtq9d (r;g5-g)wd nyoss a patch of ice at a speed v with its brakes locked. It then hit-dmkq3bn ht)dyr9(5dgg ; 9 wts 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 n(o -o3 kfvgu3jc0if 1uigj ycg(/3f;w 5kr-apatch of ice at a speed v with its brakes locked. It then hits dry paveme kji;wnu-uffr51/( gc jik0y f3g -cog v3a(o3nt 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 slam) y(fvj /9 frkn2sn)qa:(gi yfming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been tr)gjyi(y( f9kffq as/vn)n :2r aveling twice as fast?

  99.39: The driver of an automobiy lqhrnu;m0 z8x,,:lc.8y k tile must carefully control each of the following devices. Which of these devices can caul.0, xc:lnkqh8;m8t , yziyurse an acceleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force onwky z+igfef7l e70w +d6: k7sc a rocket with a weight of 15000 newtons is 24000 newtons. About how much ti7 wsizfgkd k76 wy0+cefe7:+lme 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 afk tv11ak . w4gp*whdz1p.x-z cross 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 t11pxw z. 4*avht.p dk g-kzw1fhe sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal ll( i7g1 vy-kcbength. Assume that on all tracks the roller coaster cary(-gck7b i1lv ts 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 6q y+ osst+xa l 1vml3br1+)wvequal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly overts)ya 1+ro+qm+xl3vblws v 16 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 cauvw-5 a/fy t +g-q r:vdu*zslsua :1f3rtrolls frictionlessly along the curved track from poinftd *-a+uv :zrwluu:-a3 yfs/sqv1 g5t A to point C under the influence 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 floor:6tek 7zmsk nzn/tqwz 2(8bp) 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 2/t 6 bzstnz:kq(ez 8p7kn m)wdiagram?

  04.40: A 6.0 kg block initially at rest iss6n+jo 5cni:fw )c bb) 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 bj bc+ios5c6wn)n :f)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 /xod:g71p7 b6ea clxf0 argp: a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicate the direcda7eppofgg/1 : clba6 7:rx0xtions 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 table. Neither is;fu+ 0pavfuk2u tfq7- moving. Which of the foff k ;uvf7u-0a q2t+upllowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sov4h6yuh n u41xk eg(9leigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crx(e h69kguouv y14h n4ate’s increase in speedup the hill?