99.36: What happens to the inertia of an object when its velocity isg0c,r1*ck g0zrs (/ -eu lmrco doubled?

  02.14: An intrinsic property of matter is one that does8 iq97b:x trwfe;gk0 y not depend on the quantity of matter present. Which of the following prop:0 b8;eyt9rkqxfg iw 7erties is NOT an intrinsic property?

  04.16: A 20 kg boulderm 2edq y.w-3ojz* av*c rests on the surface of the Earth. Assume the Earth has ma*e2 d3zvq*m-cjw.o a yss $5.98 \times 10^{24} \; kg$ 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 ofdk:nqmp .ot68 the Earth. What is the magnitude of tm n :kdp8.tq6ohe gravitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an .+cwh jb1ko.dj,cce c 4 ;oj2fobject’s velocity to increase while its acceleratio wfjcccjhbc2+jko;.od.14, en decreases?

  00.11: A certain partv vh 9-ub*:5gjx owgd+icle undergoes erratic motion. At every point in its motion, the direction of the particle vbd5xu+j-g*h9ogw:v ’s momentum is ALWAYS

  17.14: A block is suspended in the air aw bo+yv*+3 uewappt*j1jn7j- t the end 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 string 7b1w 3wv +p otae-pjy**jnu+jon the block?

  07.18: In which one of the folzh(+ w7mfac+uf+j1s itvtn* 4lowing situations is the net force constantly zero on the o 4+vizctn (*ffjhtu++sm 7a1wbject?

  13.28: An object is in free fall close to the ux uwgz80cs)/pv2u9y 5rtfs1 ground. A person intervenes and slows the object u0z/ uvsu gwucfyt289r pxs5)1 niformly 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 eqnck+ tl3bz/gifd: k)thi 7s72uilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, actinikbz:7k )h+csnd3t /gi 2l7tf g on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a forij5ri e4 tqdu(v/7rb l20nw9 jce of 10 newtons can be combine to form a resultant iebwi rjrj 97v/n0(dultq2 54 with a magnitude of which of the following

  10.06: Which of the sc;tjow 5 7sk02m eq6efollowing statements is most closely associated with Newton’s Third ;jms2ec0eq5 k tsw7o6 Law of Motion?

  95.06: The reaction force does not cancel thg1 t/,kgw//oe0io u xle action force because:

  14.14: A box rests on the floor of an elevator. The elevator is a qz7khy otui37h 9+5rr,pky h3ccelerating upward. Which one of the following choi 3qti37r yk7+okhrh,zph y59u ces 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 consw6gy g 18xet s(tbb9h)tant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance ac)ttsh6xg9y ebw g (1b8ting on the skydiver during the fall?

  06.08: A baseball is thrown by a 3q tzx*ifck4wd:)lnz 1( a y7xpitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the *y7d q w x:ziafkn(1x)t4c3lzforce that the ball exerts on the bat is always

  11.13: A physics book sits mgf 9/ 7hyvlw)s s7/doat rest on a table. On top of the book is a calculator, also at rest. Which on 9l)g h/dywov7/7fs mse of the following 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 conducti/wlz fkp/rv+m-9jr(;j. meb w ng an experiment related 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?mjz(-j /vr9 e/ p+ wkl.wr;mfb

  99.03: If the net force cwqm47x-ylu9 y/ ed9don an object were doubled while at the same time the mass of th wqx9 eu9ymc-d74y l/de object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a sb- 1(ix(lroqi11t mespeed of 20 m/s in 10s. The magnitude of the net force accelerating thbos-(x(tqi1rm1 lie 1e car is:

  99.05: A tractor-trailer0xtyswr rx-rb yt4507 n a+7pi truck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force+r7 ysnaittyb004r -p7w5x xr that the trailer applies on the tractor is

  99.16: Which of the following principles best explains whs2*i2s pxb 0sjy large tractor-trailer trucks generally accelerate much more slowly txis*pssbj2 02 hat automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throwsb5-6a2 :uj8b 7mrdt0vvesy;yuj*hi6cgr ex , a 2 kilogram ball, giving the ball a velocity of 10.6* rx ve 2bjyub cjv,gr657um;eh s:8yd-tai00 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surfaczcbsfu q5 q3 qo2kknm0 1u;e)1e of the earth with a weight of 100 newtons is ab)q1k s 5uq0qne3ku;2 f c1zomccelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelera1m vc9i2 kl5epwh))zxted from rest by a constant force of 2400 N. Wkm)lxp92vw c)5i ezh 1hat 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 ro64xq ay)wgal nxu1*h0jk,2ktugh horizontal floor before coming hwytaaxg2*kj,lku14x 6n)0qto 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 init3hu ql mu.rl(.ial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before cou.r lhulm3.q(ming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface whel om (mdy60b+q) m+11+s )uodi tpsiwile a person pushes directly to the right on the box with a force of 60N. The coefficient of o6b0)u)ot1 d(qyme l1sw+isi + mm +pdkinetic 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 tc yw8) tqye*j2w,u.b zo rest on a hori e jy. cywwu*2),b8qztzontal 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 block?

  00.21: A car of mass m slides across a g0 hl 8rb)*lzypatch of ice at a speed v with its brakes locked. It then hits dry pavement and0*lh bl8r) gzy 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 sli ak;uf5prb,8 tdes across a patch of ice at a 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 5bk f;a prut,8dry 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 thejn5o* 8 4.g efcat4d51euftz- ykir vk0 (2urc car's brakes and skidding to a stop. How far would the car have skidded if it i4 . rvtfj* k 80ag uc-tn5kryuc1deez24o(f 5had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each x hk 1:lci/;mo:uizu5of the following devices. Which of these devices can cause an acceleration in a moving :uc5ox: /km1;uihlzi car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a ro ifjfz,c2-lz3 4g*ksucdm ( ,ucket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near ts2k f,z3jcu4mdzf*i(- c,gulhe surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person called sru9qmdwf*7 7Ted 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 th f9*7qusm7wdr e sizes of these three forces exerted on the box.

  02.27: The diagram below shows three r2t5op.h 9l r,jc7 ffbholler coaster tracks of equal length. Assume that op.hor2jbl, h9ffc 57t n all tracks 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 xr 7(.miss3v+qd3g a uof equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessxr+3s( m 7ida uqg.vs3ly 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 alongodt,8+x+ v g) pawzwy( the curved track from point A to point C under the influence of gravity. What would be the direction of the ctxz)8pw+v,+ a ywg (odart's acceleration at point

  02.40: A box with a mass of 50 kg . epw-q ws/x*tis dragged across the floor by a rope which makes an angle of 300 ww /wxs- .p*etqith 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 a9k.:jv;v d3 xq-ux ldft rest 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. What is true of the friction acting on the block after a time of 1 se:vx.jk fqx dv3du;9l-cond?

  05.10: A homeowner pushes a lawn mower across a 42t/yuuietorud; d*3gf 8 vx3horizontal 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 mt *;43 rodie 8/x3fugu dvtu2yagnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a tw:oj.bpk2c- z able. Neither is moving. Which of the following statements concerning oj .cp2:-b zkwthis situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sx33 jx ghwyi45 hvbtp1y: 27saleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the5bp2: hygyx 1v347is 3a xthwj crate’s increase in speedup the hill?