99.36: What happens to the inertia of an object when itszr .,6b2gr kcu/k)xk:lp8rq;p ue:bn4 y3 rrd velocity is doubled?

  02.14: An intrinsic property of matter is one that does not p xpz6nq9k63fetq0 u+depend on the quantity of matter present. Which of the following properties is NOT an intrinsic propertyp qq+9pknefx6 6z 03ut?

  04.16: A 20 kg boulder rests on the surface of tqdtih33p/*wp k1)vjkt+*i 48n; cqm mxz fw:che Earth. Assume the Earth has m /c mw:jpqqtpm )1;n+3i *ck8w f4d*xhtk3izvass $5.98 \times 10^{24} \; kg$ 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 surfacewgktev, d9 6t2 of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Eagkd w6,tve9 t2rth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possiblepl/r-( l0fpn ln5c3uwgkm 5+6k3mv er for an object’s velocity to increase while its acceleration decrek w v(n+-ml3fr 3c p 0k5lgepu6/5mnlrases?

  00.11: A certain particle undergoes erratic motion. At every poinhpr:9nl73 gm st in its motion, the direcm:p9g l73nrs htion of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at *w)xkpy :;jaqthe 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, whiwjp xk *:aq);ych 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 situations is the net /vi+t6xfxygqcw) le1w:bo 4 ) force constantly zero on the o:oexb fxtl1gi6yw+ c)4 v)w/qbject?

  13.28: An object is in free fall close ,5:yn6 gjw)sr+ol 0hgzo o;eva:pk8x 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 person? The magnitude of the object’s accelera zn g 8xy :rjpo)sv;g+5oae,w ol:0k6htion 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 /zuruwyg/q)sw y(-6a N, and F3 of 70 N, acting on it. The magnitude a suyu/w(/6 ygrw )-zqof the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of vlrmf 9-n7.vdq i .mio0gb/. z10 newtons can be combine to form a resultant with a magnitude of/qm7dvl ir-0v.inz9 .mf bg.o which of the following

  10.06: Which of the following statements is most c744aj rt0ush8w gkzie6z ;y v.losely associated with Newton’s T7 6e8yz 0jv;hr.ga44iz swktuhird Law of Motion?

  95.06: The reaction force does not cancel the action f9 yw-bdgymh6fx 87qyjq ixyl -f; d(39orce because:

  14.14: A box rests on the floor of an elevatorboawn7x:k m/ s/;l/kp . The elevator is accelerating upward. Which one of the following choices best represents the Newton :s;w/okakpxmb/nl /7’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the airrdjb6-, h,tnab4 nlk mxwb2:x+dd /g8 with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance ac4h mjbltd bxr2:8bx,gn k,+ dn/w6a-d ting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. The battechk,2 c;z4(txw+ c 0aeeckhp) rswings and hits the ball. The magnitude of the force that the ball exerts on the bat is alwck0k; xczepat2hw,c ) h+c4(eays

  11.13: A physics book sits at resqham 1dei p(evj9xsas3x 4oh50 6.4e 9ry.bmh t on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s ash mh( .b e.1r694 4jqvps0dyxh e35i 9aexomThird 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 an expw mf:n sfz-26y0jg66 b)qhm oteriment related to Newton's Second6 gbt:nzm6m0js- h)fy 6w2oqf Law. 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 the mas rh15qd d/x;yaugu58w 0za u1ps of the object was hal;ux5 5r10qyzpg8 /uahdd uw1 aved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated u(yl zqtc*cs*2; fvu 9tniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force acceleraf2clu9y ; v*(qc*szt tting the car is:

  99.05: A tractor-traie v190myqt09aa *ct -xv8cyeiler 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 forcx yc9eai80ae mv*9tv-yct q 10e that the trailer applies on the tractor is

  99.16: Which of the following principles b6 rdkyzc+slevl8 :.g)est explains why large tractor-trailer trucks generally accelerate much mo:v+sk.dl g zrle yc6)8re slowly that automobiles?

  99.19: A 50 kilogram skateruegj/tes1 z;8i dz-d/f1ex2 i at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent z ei zt1ej- figd18e;x2du//s motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons is a*+mhidu sw,;w8bgn d);v cr,pccelerated at wmp ,nc*ru ;bgs ,d)w hv+;d8i$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg i, mk,pysc sq,1cdu +.ss accelerated from rest by a constant force of 2400 N. What is the spkd q+s sp,cs1.,myuc, eed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with ini6 ejbjv2f1- ufc9ba 9qtial speed 4.0 m/s slides across a rough horizontal floor before coming to rest.bfe9- vjuc2f 19 qba6j 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/s slides 8.0 m across a rough horizonr;;ldouq 8bb;dd 7b0cemd87u tal flo bqb; codrmed78d;dl8u ;u70bor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box5ubgcb2u -wq9 remains 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 qubc259-gbw u 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,61ec r+dobl ylpr0j0g+)auz moving at 8 m/s accelerates uniformly to rest on a horizontal ylr0+d uea+bg )p6 zol 0cr,1jsurface. 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 patch of ice at a spih c42d50lt.w dmomp :i.g+ r-*y eedaeed 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 μet a-y.hdic pd glde im2:mw*.o 5+04r .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides acr); ta : wsr1+o5gd5hyrs ifxz8oss 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 tf5r1ts z:gwhrioa5 s x;d)+y8ires 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 slamminwd096pbwz: kvya3 *crg on the car's brakes and skidding to a stop. How far would the car have skidded if it :rap96kzw wv30yb*d chad been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of thxv m)-a ctdv)bo0wh/wpt1 *a*e following devices. Which of these devdvt)p1atwhc abwo*v *m -0 )x/ices 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 wen9;kh hgy8 liz3b sclmr6 *fodv4jz25*7wc 4 uight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/ssdz6cblvkmi4nf5jul*wr2hg* y73c 8oz 94h ; near the surface of the Earth at takeoff?

  07.21: A box slides to the right ac. wrb jh4rc 5p,-lq sfb:9wxq1ross a horizontal floor. A person called Ted exerts a force T to the right on the box. A person called hp-,r 4l q5js. 9fq1:xb crwwbMario 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 three roller coaster tracks of eh ih::hi x9a v+znf0/pp w9gb-qual length. Assume that on all tracks the roller coaster c/i9 ipn0a :bg- 9pvf:+hzhhxw arts 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 trac6blr: 6 wd2mgmks of equal length. Assume that on all 62lb d6gmmw:rtracks 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 friclm1 d4c8md2xbtionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cartm 1 mdl84bdx2c's acceleration at point

  02.40: A box with a 5b7f u -w(cj6m e+kn v/tmk(iemass of 50 kg is dragged across the floor 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 kwu ( befn( /iv+etc-mmk57j6force 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 aqn +8pj3vg-/vk,v z ff 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 afterf- jzvv+n8 k3g fpv,q/ a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a ho 96a7lptue3h8 f5p t2mezp/ryv/ j8.2w r snpbrizontal 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 os9z j/p8 pf e h.7a5r8tnr yu/ep23pb26 vwlmtn 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. Neit3 gs a.2kkbe9ij fc )1px,dvy9her is moving. Which of the following statev kf1ya .)p23cbi9,gdj se9xk ments concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled up am, 8bzkj++mrno.f ;y s hill with an increasing speed. The crate is not fastened down to the sl 8.zj;fnrsbmo,m y+k +eigh. What force is responsible for the crate’s increase in speedup the hill?