99.36: What happens to the inertia of an object when its velocity is doubledu;n7mb+(hgvr+nd :4pr nu +ay ?

  02.14: An intrinsic property of matter is one that does not depdvtdmjjl:1+97 kbv* d end on the quantity of matter present. Which of the following properties *bj1d7 d:+v dvl9jk tmis NOT an intrinsic property?

  04.16: A 20 kg boulder rest 7 gusyvg;vwcm59faf,d9(gg: s on the surface of the Earth. Assume the Earth has mas yw 9,vmau;5sfg(v7c:d9 ggfgs $5.98 \times 10^{24} \; kg$ 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 spher4s 5hw2;jy ojl yhno8 9xr+;d,hdd6a3hhfzh,e is in free fall near the surface of the Earth. What is the magnitude of the gravitational force ac 4hh2r xz y5h3o+lajyhdwn,odhs,6j;9;8fdh ting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its accelerqkc8arh.reysh * a+ d1 g3:lm*ation *lsh*g+kayhmdr8 e1qc: a3.rdecreases?

  00.11: A certain particle undergoes erratic mo2w 1taqs4fwj9 tion. At every point in its motion, the direction of the particle’s momentum 29qw1t4ajfws is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a pm (arstsv h+s;.8 96go4ucm gw )lr.wberson. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the following choicehsws;)( .lc ab.vgm 6wt 4sr8+r ugm9os 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 situations is the net fooc.. 9xn-3c j wgzaf5erce constantly zero -z3afonj ecxg.5. 9w con the object?

  13.28: An object is in free fall closdifxt yo izh p2s645g,(9i-ioe 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 it is being stopped by the per z,i hog(ifs-xti5o dyp29i64son? 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 ks,n.ym+b6bqct) jj9 gg 8ee )l: (ldyN, and F3 of 70 N, ags+ 9e: n )t jqdmby(bg8l,)l.ckey6j cting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine t-9kcr,tg t6f4mfj36cdonn x 6o form a resultant with a magnitude of whi4,6ott- n3 xjcd9cf6nrfg m6kch of the following

  10.06: Which of the following statements is most closely associated+uxu8 .sl(*f lzm9n jcx *8x(ydf ibl2 with Newton’s Thir8f+n(.u9x*s 8z2c yml*(juf xllxi bdd Law of Motion?

  95.06: The reaction force does not cancel the action force becauxks*nwj6cu p +u /vor8g-to-5se:

  14.14: A box rests on the floor of an elevator. The elevator is z 7 xe25z )v x.cszw2vml;f,jk5 iigk0accelerating upward. Which one of the following choices best reprl57i )cvk22fjx;zzs5.,w xez ik mv0g esents the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falllam1lt;r(d9,2: 2 ov lhqdumus downward through the air with constant speed. Which one of the following choices c(l;dmr2tlvua d 9l ,q2uh 1o:morrectly 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. Tho( t(rlwvt1w+v *avrw:(ee *ne batterswings and hits the ball. The magnitude of the force that the (le:+((1 ter n wwvv wratov**ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a7ad iycsj39 ;c9:pquq 6 eq7ox calculator, also at rest. Which one of the following choices is the Newt is9c7yaoqqqp9jce ; 37:6dxuon’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 conducting ag fa4kd/s-rr8tys x *e.*k+bqn experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what c*xkd f+t by84. rass/* grke-qonclusions can the students make?

  99.03: If the net force on an object were doubled while at the same l ;qa3qrsljw(0015 1jlshe dvtime the mass of the object was halved,then t310j(ljqr;l0a1 ev5wdqlh ss he acceleration of the object is

  96.15: A car whose mass is 1500 kg is 2ex-j(unuu,mpu:k+ m accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerx:umk mn+ju(uu,p2 e-ating the car is:

  99.05: A tractor-trailer truck is traveling down the y x s--m2buhro/xx8:droad. The mass of the trailerh -yx/-m2x:sd8ox b ru is 4 times 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 large tractor-tj/mb a2k,xauf 61 vas;railer trucks generally accelerate much more slowlyfmav sxju2 a6a,kb; 1/ that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionles .0bkv:dysfnvf 4ts-*3etw s)s rink throws a 2 kilogram ball, giving the b3bn. sdvtk-4s yve )t0w:* fsfall a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight on bymeztyjj3j*1lph l +/3y7; f 100 newtons is accelerated at 3ly+e31h /7 j bzmyy ;njl*pjt$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceln gl0ytj r3 d:ly67a5herated from rest by a constant force of 2400 N. What is the speed of the cartn:07 r 6jadhly3ly5g 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 mi7:t- yrube e0i n1*ca/s slides across a rough horizontal floor before coming to rest. i*tnbe0 i:eyc7r1 u-a 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 velocity 4.0 m/sx kh-v e:f2k 7qj:x*s5a1lc i u9ovds5 slides 8.0 m across a rough horizontal floor before cominsk icj* -ued5qvhvlfsx:297 ako5x 1:g to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizne3 syj6 yex+zp8r7 f0ontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of 8n6+ fs3 e7jyz0yerxpkinetic 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 22c6d,i 1(r ulpcbuelaccelerates 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 lde62p cuc1bul ir2,( the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch of ice at3k f/)wo nzyw8(d4nlw a speed v with its brakes locked. It then hits dry pavement and skids to a stop if/o)wnw8n3z4l w y k(dn 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 wif) /-ogl gwev.th 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 to.gw -/ e)vlgfhe 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 car's brakb1 emg;9sh4 tyj; e+pwes and skidding to a stop. How far would the car have skidded if it had been sm1ew ebpgy4t;+ 9j h;traveling twice as fast?

  99.39: The driver of an automobile must carefully ccq-5d tq klk./ ua0a hqps6b(;ontrol each of the following devices. Which of these dst k(k ab06d .;uh q/5pa-qcqlevices 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 1(4d ,txbnxf if, d,+rs5000 newtons is 24000 newtons. About how much time isdnris fx ,xfb4 ,dt,+( 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 ri lpt ip0bc+fe1p27(,eexd2f w1up*wl ght across a horizontal floor. A person called Ted exerts a force T to the rightbtcp1,p2(1pl2ef wi7xw0ed l fue *+p 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 the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three79 /k2z oow3 uuhk8jhe roller coaster tracks of equal length. Assume that on all tracks the roller c j9wko uozehh372ku/8oaster 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 length. xl8: 5 vkouuc 6im7+yhAssume tha 7m6 x:cu+5lohu 8yvkit on 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls 5jl.- iwpb09dj23kq wt7jozdfrictionlessly along the curved track from point A to i qd59tz3dj jb2okw.0l 7-pw jpoint 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 by a rope whgu emt* 6feddr9sd89+ich 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 isus8f9rdd9md tg + e6*e 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 wall by qn1t2; otemg47+ei z6an q0ira 100 N force as shown. Thecoefficient of kinetic f0 nqa7mertq21en+t4o i;i g6zriction 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 second?

  05.10: A homeowner pushes a lawn mower across a*w 2j .wtdsy(vv2 p.oreu *rh p7sw50t 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 CORRECTs(75wou2s d w*2j 0yvrh*wt.p. v etpr?

  06.14: A book leans against a crate on a table. Neither is movrt1 hiq v2b/naavg+a3y m( 9o7ing. Which of the bgv7q3/n aya vaio 12m9+t(hr following statements concerning this situation is CORRECT?

  06.15: A crate of toys remainsj7 rl ,s:m*w(,vw ldm veaf;j87 ckyy8 at rest on a sleigh as the sleigh is pulled up a hill w:*,m,7yek8 ( ljv;als wjvr mw c8dyf7ith 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?