99.36: What happens to the inert v: xla1z/;y,gfyki8hia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that) w.-3o .4*;9rjrqgz lwc,q7 pkdp hojr6ouwv does not depend on the quantity of matter present. Which of the follow jwqd r-q6rh * zw.jo)ru,7vc9.4;o lgpp3wkoing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earty8ii5 n)nogo0 h has m5i) i8n no0yogass $5.98 \times 10^{24} \; kg$ 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 Earth. Wha4 6(uwl0(7k 2 nz,nfqklvrtgxt is the mx7r(kw2q (z n,04n kfgvtul6lagnitude of the gravitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possibleoldi)(lg : fjv6n *x cn9,hct, for an object’s velocity to increase while its acceleration deco)g,tid9,nljhn vx6*f c (l :creases?

  00.11: A certain particle undergoes erratic lu7 5xa:xn:qlmotion. At every point in its motion, the direction of the particle’s mol:xlx u7:qa5 nmentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a pr29*9dd, y gj zle7qiperson. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the following7,g2 *qzd9y eljir9pd 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 fg/:jc2, hdufiollowing situations is the net force constantly zero on the obj gfi,jh/:u c2dect?

  13.28: An object is itz k qny2h)mw;b4 54qwn free fall 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 object as itwwyq;tqbkz54m)2n h 4 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 N,e/+xy.g6 cfu.o:hxrv 9 lgpn, and F3 of 70 N, act 9p6r,ygu l fgx cx+h/.eno:.ving on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newmhzh f8kk,x *1tons and a force of 10 newtons can be combine to form a resultant with a magnitude of w,h8 1khfx*zkmhich of the following

  10.06: Which of the following stater5g:t5(hccjz ments is most closely associated with Newton’s Third Law of Motiongr 5 cth:cj5z(?

  95.06: The reaction force does not cancel thr0e0 4pzoyo+ eip1d)i )gm2k he action force because:

  14.14: A box rests on the floor of an elevator. Th+3(xrcl-l:kh 6o y neqe elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force toero 6h-klxl (cqn+y:3 the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the ai hg0) +iiwo1exh2 p4s4wih1x fr with constant speed. Which one of the following choiex iow0h1 2ihg4hp s)f1 4wi+xces 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. The bgtzhb p3,6p0o nc ( d)ncdx(q2atterswings and hits the ball. The magnitude of the force that the b2(tz o) dhp ccxg pq06n(bn,3dall exerts on the bat is always

  11.13: A physics book sits at r-3l 1bsi6zhcunov (0ko r 6sov 2*2gctest on a table. On top of the book is a calculator, also at rest. Which one of the followinzh stkcl16 r 6oc3-oo20n v*(ub vs2igg choices is the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students i(vk /m dwq5pc.n a Physics I class were in lab conducting an experiment related to Newton's Second L5pw k/qc.dv m(aw. 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 same time t,h5 iurgw cc2vj n(bcm,:2yb7b 0wuvse/ku4 :he mass of the object was halved,theum:,sneby / uj,w2bk ccg 72(5vc0bvuw :i 4rhn the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from4i*divbsv:)sxg;hl;ia, c. xae :8r t rest to a speed of 20 m/s in 10s.l:isia8gv;.ibxh *ea v),str 4c:;xd The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck iss vxey4mik+n 27rdy(. traveling down the road. The mass of the trailer is 4 times the mass of the y+rkv(nx. sy7 ie2d 4mtractor. 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 large 7.h5yvk v(*nw hxjpm*tractor-trailer tr j.nxvp m(whv5ky7 **hucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 26nb (qvfrnp)tzx: (k) kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement desn( xp vt:r)b6( n)zfkqcribes the subsequent motion?

  00.13: An object near the surface of the earth wit: lu 4ecq0hgeu(j,- mhbib 9x:h a weight of 100 newtons is acceleratedbquee,j mi9hl: :(u-4x 0hc bg at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg i upge: hmv(vio)c)( b4s accelerated from rest by a constant force of 2400 N. What is the speed of the carc(e)i)u vv:(bhmo g4p 8.0 s after beginning?

  98.32: A 3.0-kg block with initial i177a g*7ce,shcz/g i* wb jhwspeed 4.0 m/s slides across a rough horizontal floor before combhg*7h7g/7 zwc * ,i e1jcsawiing to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial 4v:8q .veacmjsa8m 2zvelocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of fricti vsm.mq vcj82zea 4a:8on is:

  09.21: A 20.0 kg box remainbvo2f*,no( gv s 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 fri vnof*( ,gvob2ction 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 un k4ey)cbq .sv +klr6.ihah2t 2iformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following cvk4 6hkl i2yqs)a+c..2t hrebhoices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch of ice at axth t d gj99i:wtu(y., 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 the dry road is μ t.h99 j,(tuxwd gt :yi.
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides acars3d.7 c(t3i6cl9 7ts,wminr 4 cgvcross a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skid 6ms9 v7c.r4iinl,c wst 37(tg3c cdars 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 carsbs9z u -iw6h0 makes an emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had beiu h0b69sszw-en traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of9cz; mks srq91 oc 5jzny-24if the following devices. Which of theqo zci 912ysjsm9k-4r f5nz;cse 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 24000 newtonsk50nz 47e tt:cmwln) r. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface ce570mznt t: r l4nw)kof the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person c 7/x3o q1kriqiy4r)y fnq5y:ialled Ted exerts a force T to the right on the box. A person called Mario exerts a force M to the lq5r/ o: fnki)4iq1xqr37 yiyy eft, 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 belowybs6: fvs/a 4s shows three roller coaster tracks of equal length. Assume that on all tracbas6svs:4 /yfks 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 of equn+chgwqz.3n *uv5,ezs ./hft al length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly35s. n/.fz, gwvnuzht+ *hcqe 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 cartr4 nqjy,jc*pky*i;2+x 4bvnmf olls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be jny ivkqpbx4mn*2+c 4*j; f, ythe direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is db-t 7k;r.mir9wa12vtafbip0 06 bel t ragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the followi 0iifmblb1t wt;0av.pt2 6e97-br r kang 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 wal)-,lvch /av y;xxpda/y(r +qxl by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient , ayrxax/ /;yd- vqpvhxl+c()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 pushesvg4 rey9 ;ij24m8osf w a lawn mower 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 various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, P is r4 ve8f49wosmg ;2 jyiCORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which ox.sirr5 c3sq(9 x;wke f the following statements concerning this situation iqk5s9ws; 3e(r.xrixc s CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pua4j7qrodw q qk 2n2o)m,k. d0ulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crajdd.oq, )or0qm u wqak72n24kte’s increase in speedup the hill?