99.36: What happens to the inertia of an objecdb.dp m(ur3-v8 f6 5n wnaz( od.apny1t when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on t bgxnhqhi- 1:i, x+f4yhe quantity of matter present. Which of the following proper 4-xxbg1i yfq,i h+:nhties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth hanm:y1xt/xbj vzq:jk.*6m -ons ma :6:xx /jjyn*m-knmto1bvq . zss $5.98 \times 10^{24} \; kg$ 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 ra xl0)j b,x faiu c3*cxn7x*1the Earth. What is the magnitudx a*bc1 xxu0x)3l* ar,fj cn7ie 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 possible for an object’s velocity to increase while it)b) gh3ji rzm2rbp 9i+s acceleration decreas9irpg)rm2b +)i3bj zhes?

  00.11: A certain partu)l9ndlne-s 1x . qop0icle undergoes erratic motion. At every point in its motion, the direction of thens-)u01pl.lo q9xnd e particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a perwtm03pyr- 0 aaatka;;son. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which oa a - r0;map;wkt0ya3tne 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 followinr ig vzyg2q9d: h*q)o;g situations is the net force constantly zero on;g9 2gz)qovqd*r: yih the object?

  13.28: An object is in free fall close to the ground. A person intervenes and slmaozar;jdcck ) 47-jj 7j/d, aows the object uniformly to rest. Which onjd)m/a7darkc-, 7z cojj 4 ;jae 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 equilibrium has three for)h5 eyia+jln /ces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultajy5+h/e) ilannt ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of tb m:6 5:5skscqo 1n*dagz7cg10 newtons can be combine to form a resultant with a magnitude of wh k*b qs 7s6g1tgd: 5oazc5:mncich of the following

  10.06: Which of the following statements is mo r.m)t 1z/2qv4swieqhp ag*r+ st closely associated with Newton’s Thiameqth*r gpi +r)24. w1sv/zq rd Law of Motion?

  95.06: The reaction forc(znjg, zwyi-*st3dfj7fe5my b*t j. *e does not cancel the action force because:

  14.14: A box rests on the floor of an elevatorzx/* 2k(zb tllvez*rn7* c7zj . The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Thir77lnkjvb r *zlz x2z* (cez/*td Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through t 0l+7q. 3cjjlfg(fg gche air with constant speed. Which on.7 g lgg+fj0jc lq3(fce of the following 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 pitcheyl z vpz1y6vp.:a;g/8kk l l1hr with a speed of 35 m/s. The batterswings and hits the ball.kz 8 z1lvhykp.l1 y;l6a /gvp: The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits (6x -vr52z(wh xutxmzat rest on a table. On top of the book is a calculator, also at rrx5 zvw(h x(mxz2ut-6 est. Which one 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 lai .iu)6/ccx+ kb*lk-zqvi1 e,o-ye I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the r.qiu ik-),o*ci xc v+e-z/ay bklel1 6ight. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were dx low gku9 (y3 5-iyxd66fuxe8oubled while at the same time the mass of the object was hal3fu6kx8 96 lw(xydx-ieuy 5ogved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest tn;rv,q pzu/,t5m 9v yghwp-u-o a speed of 20 m/s in 10s. The magnitude of the net gyz ,w rv9p- q,unhm -;uvp/t5force accelerating the car is:

  99.05: A tractor-trailks uo p,* /kb i-)*biy4intdb0er truck is traveling down the road. The mass of the trailer is 4 times the mass of tkii4bk*d0 *tu/n )y,-s obip bhe 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 whckxlsvhf:)n8sbqi )s1y; 2;w y large tractor-trailer trucks generally accelerate much more slowly that autom2sy:slnbkc) ;f8v 1qx )s; wihobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink thzd lb/cr*);w nrows a 2 kilogram ball, giving the ball a velocityrz *b;)/wc ldn of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth .*0h r2ss okz +f(q4 :wtsxxklbd+k+y with a weight of 100 newtons is accelerwtqxs(fbk +xlkd *shs.+y4 2 k0r :+ozated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a consta/pmf1ocn g -ok 4hbk:1nt force of 2400 N. What is the speed of the car 8.0 s afte- hk4o:n11/c kbogfp mr beginning?

  98.32: A 3.0-kg block with initial speed 4.0vjeu*ze x2u:n2s8h t; m/s slides across a rough horizontal floor before coming eju zseu:;tv hn *22x8to 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 velocity 4.0 m/s slides 8.0 m acrosn(l ff1lv6 w*1qiltf5 px( dq(s a rough horizontal floor before coming toiwf1dv5ft q nq1x(6pl(fl( l* rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person rpa2r8 3qjm ;,;chvfppushes,jv 8r ph23acq;m;pf r directly to the right on the box with a force of 60N. The coefficient of kinetic 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 movinnhk l9s8-9ejf fpru(1npej9 8q.9f rdg at 8 m/s accelerates uniformly to rest on a horizontal surface. The block tra9f 9-p uf(1fjk9re88.dph r qn9 jsnlevels 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 spez k )e605u),fewnnyswed v with its brakes locked. It then hits dry pavement and skids to a stop in),z 6 5uefw0ns)y knwe 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 with its b/f ;p6j3qab*oc uq 0vlwm*r4u rakes loc63o4fw 0*cvb/apr; lmjq uuq* ked. 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 .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emergency23vu-xggkvv( stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice as fast?k-ug3xv (v vg2

  99.39: The driver of an automobile m(2rgt rizhp 1av0 +xf;ust carefully control each of the following gv (rzf 1hi;p +02atrxdevices. Which of these 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 newto w 5p9ajo353vamylr /ons. About how much time is needed to increase the rocket ’ speed from 155mrl 3aa v93jwyo o/p2 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person called z,yd9xy+ol4faa imhefwa k;k 7/.c-3 Ted exerts a force T to the right on the box. A person called Mario exerts a force M to the left, which is halo ,3zdy-/hk 79lam4xkai yw; +af cfe.f 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 equal length. Ao+uxdcy87fo vx() pu)ssume that on all tracks theo v )+)x7ucxfpu(ody8 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 belowah ,zhp1,s a*x shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same eleha,sa1 *hz,xp vation 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 roll40lbrn m1wvd c:(whdg3 (5ytysr- /ncercoaster cartrolls frictionlessly along the curved track from poiht ybrgcs3:y1cm wd r-vlw((0/ 5nn4dnt 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 hxy99tx(0tx0e 0bmh xdragged 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 betwe0h 09b txty(hmxe9 x0xen 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 wall by a 100 N fo5nkhwevnr0+ h vhabin: /9g5;rce ahw9v+kbriavnhnhge 5/ :0 n; 5s 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 second?

  05.10: A homeowner pushes a a)xve w6xg9c g,qam35 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 re5x)9,m3 qgev w a6cxgalations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. 3vipmoapbi(i7 dj9*p-p:r9* an nm +c Neither is moving. Which of the following statements concerning this situation iacj:o9-mb937 i(vraip p+p *pmdn*n is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleig3 *hl9p.e+jqxnnj 9x r i+mp7hehr (k)h is pulled up a hill withx)7m i+ke(jjqhl3enx r9.hh9n + *r pp 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?