99.36: What happens to the inertia of an object when its v( q,vgw+ 3f)-yiz4 kwgdik ael/ sy89welocity is doubled?

  02.14: An intrinsic property of matter is one tx jdf8aoxuia5n7572 phat does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic proper5 odaj 587x 2nifpx7uaty?

  04.16: A 20 kg boulder rests on auw7f8kq da90. ov5g xthe surface of the Earth. Assume the Earth has mau 9 kd587oaagf0xwqv.ss $5.98 \times 10^{24} \; kg$ 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 Earvnptddaiq(mb* 6k-je3 /z 7 4vth. What is the magnitude of the gravitational force acting on the earth by *dj 6ibmq/7t vek-3vzdp4an (the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase whhxh., k 6.t )ozhyc4; sbux8ayile its acceleration4t,c ;s) .b 6z8uxkyhax.hhoy decreases?

  00.11: A certain particle undergoes erratic motion.fynd s 8r/7es3 At every point in its motion, the direction of the partif s7r/e38dnsy cle’s momentum is ALWAYS

  17.14: A block is suspeno 5e75zvv - q:wadpq3skq nd52ded in the air at the end of a string held by a person. The pernvq25pz5s3dova -q 7w dqek:5son 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 on the block?

  07.18: In which one of the following situations is the net fs:w 9h2m8v:ld q;rmuforce constantly zero on the oblruhf9;8:s 2mqdm :wvject?

  13.28: An object is in free fall close to the lo u0gjp2 ml/(a4/ l+0mrmmawground. A person intervenes and slows the object uniformly to rest. Which one of the followingm00+larjl(/uop 4mam2w/g l m 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 forces, F1 of hi7eirn *fc0 ;wuw*,r30 N, F2 of 50 N, and F3 of if 7,;0r*wcuie*hwn r 70 N, acting 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 9rdud* j q-st6q2v ip*to form a resultant with a magnitude of whirp9 *dq2*q6-dsuitj vch of the following

  10.06: Which of the following statements is most closely ab2art)oev :6 yssociated with Newton’streo62 v yba:) Third Law of Motion?

  95.06: The reaction force does not cafs bq, 6e0tl4vncel the action force because:

  14.14: A box rests on the floor of an elevato1n9 ih *hkf ctn:53cksr. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force h*ni3 nt1:kh fsk5cc9 acting on the box by the Earth?

  15.15: A skydiver falls downward through the air wite f40lt0u /e 76; muofqyg bds9qk4-vmh constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the sk 7mk -o 46vt;4qf0bluse/qyge mufd90ydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35n-,zk/sdw(eu hc- 2wj m/s. The batterswings and hits the ball. The magnitude of the f s2zwceh juk-,/ dwn-(orce that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top ah(-(pwz qbf+1: 4u4imui gmzfu w h(3of the book is a calculator, also at rest. Which one of 4 z-g muw iahifbzf+(w4:muph1u(q3( 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 condu6 /igdc:e 8dvscting an experiment related to Newton's Second Law. The collected datvc /e6gsd:d 8ia 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 tihzxxhr3f1o8jmkm w* gg;av d2t2c p)0j33sj)me the mass of the object was halved,then the acceleratio*82 xhpa d)sj0m1x32z wggt3j o;3hcmkv jfr)n of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniforml t6t1d -lgia/2mi)v pgy from rest to a speed of 20 m/s in 10s. The magnitpdg g l1-t6i mvi/)a2tude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. T2hkj :-0clwcl y r4vh,he mass of the trailer is 4 times the mass of the tra kv,c2 hyjwl0c:4lhr -ctor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the folloaif-1xw m1nrv q td+kicc-773wing principles best explains why large tractor-trailer trucks generally 3 -qak7rwdvi1-f1cx+ticn m7 accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 k)//m tai 7.6 zeshupdqilogram ball, giviqm6s.h/zdpt / iu)ae7ng the ball 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 ,3x1f7hug3 vbulxak+weight of 100 newtons is accelerated x 3xghl fkbv1+ua7,u3 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 con*m 32ipqvt 6,o+ r.yudrk v)pistant force of 2400 N. What is the speed of the car 8.0k.p2ivi*y 3+tm v6)r,ruqdp o s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slid r rw4eno,-9fhes across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block s r-f9ehn wo,4rlide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.gbvuoqfm1 17x l 09zp*4s nb+c0 m across a rough horizontal floor before coming to rest. The l 9b4vfn1po+1u0q*cxm s7bzg coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surfacecvy/v)9vgk)*4k5n9d hm wonb while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic frictio ym )nn54o )v99h* kdvk/bwgvcn 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 a9m.fqhsas wv ,2h.1,ie6nvrb ccelerates 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 the coefficient of kinetic friction betwi6sw, .n,qm2 fv9s1vbahr e.heen the surface and the block?

  00.21: A car of mass m slides across a p(8 izvt/k9-s 1zbtslpatch of ice at a speed v with its brakes locked. It thzlz 8t/t-k1 9s(sivb pen 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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch of icef(6f+a e/l qa m vp2xb;t6hg;p at a speed v with its brakes locked. It then hits dry pavement and skids to a sta(hlft ep;v pqf 2bx+6 ;am/6gop 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 emergency stop by slamming on the car's braim07xf p 7 bb 4q0be3iol*j9ob+.aysikes and skidding to a stop. How far would the car have skidded if it had been travo974m+ ibj .fpixqya o0 i*0e b3bbs7leling twice as fast?

  99.39: The driver of :ll ,i nn)8t 4sznv4hkan automobile must carefully control each of the following dev48 v )h tk:nilzs4ln,nices. 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 aci1fkkwj67au4d xay/+n* d t+ rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speecjkf+wnay a6idd* txk/7+4 u1 d from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a h+szvqmp6 9br h/(bp,corizontal floor. A person called Ted 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 rightvc+ b mrzb ,(q/9sph6p, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal length. As9qw9hwhv rnf0;z2 i4 gsume that on all tracks the roller coaster carts start f wfh42 zr9hqvnig9;0wrom 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 e3fzsa6qtu 1o l8r*.ks qual length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the1ssl8okra.6q*utf 3z 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 rollercoaster4 o6aa0dbjy e2 cartrolls frictionlessly along the curved track from point A to point C under the i yej62ab o0da4nfluence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass 8dmx*a p o0(3z1zusxdof 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 coefficd3z o*8dz 0m1xspux (aient 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 wall by a 100j3u aq j,k.oc: N force as shown. Thecoefficient of kinetic friction is 0.30 while the coj:uoa,j k cq.3efficient 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 push+ 1dzmk ya9e 0a-tuned5 ,+yixes 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 CORRECT? ,x+ez0 yaditm+kyn-due951a

  06.14: A book leans against a crate on a table. Na 0 : ep)yhwjp+b8;m3qp1jnt 30fhbpyeither is moving. Which of the following statements concerning this situation is CORRECTbj+ppy)ewj qfb3y:8tnh ma0 ; pp30h1?

  06.15: A crate of toys remains ay:cg 7xt.u3nd t rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. Whag:c xdyu3t7n .t force is responsible for the crate’s increase in speedup the hill?