99.36: What happens to the inertia of an object when its z b7ln8 q .h318hdfj8ujk zy*ovelocity is doubled?

  02.14: An intrinsic property of mattetogag c;fkhn;q /r6;* r is one that does not depend on the quantity of matter preseng o/ f;hkn;ct 6g*qa;rt. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests (g ;* cgd/xg ;ezw i6l8trgf4con the surface of the Earth. Assume the Earth has mass gx*; g t48/fgz; ie6d(rcglcw $5.98 \times 10^{24} \; kg$ 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 sphey)g d0 gjvo9g-ru:e8ire is in free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by0jvgor) ige9:uy g8-d 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 accelenvsuatqm-d9p95 u:7 vy k:k e;ration decrease uvku75n s:vt k-qd9ya;:9mpes?

  00.11: A certain particle undergoes erratic motion. At every point iyjbm b*k/)6/i5 epb8b-z-7e ylwht zpn its motion, the direction of the particle’s momentyiz 5tmb )87p-w kbzp y/6eb/e-hbjl* um is ALWAYS

  17.14: A block is suspended in the air at the 5;-*n+a 9t5 rqv sp9 k:)vj yu wyfol;qnbyq6dend 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 pad-) 6*tryly;v5 ujsp;+ vqw:qy9 95a nonf bqkir force to the force of the string on the block?

  07.18: In which one of the following situation+7pr q cvlr5:us is the net force constantly zero on the objecr7lrv5 u qp:c+t?

  13.28: An object is in free fall close to the ground. A person interv2w dkn-1ihu 6nenes 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 6wu2-knnih1d acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equivysnqzm zwzo-z(rv5 ((d8 6; rlibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting 6wr-z ((o5vyz(nr zq;mvsdz 8on 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 combeqwxm8zm*w1q 2a0 5 nxine to form a resultant with a magnitude of which of the f*w0zw8x aen2qq 5xm 1mollowing

  10.06: Which of the following pal6z)y+z 420csq fhcstatements is most closely associated with Newton’s ysza0c 6 24zqcphfl) +Third Law of Motion?

  95.06: The reaction force does not canc myv02 ;qhmx.hel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accbxdmj6p,k u).v3 +8fri j9excelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gj xd9frj6cup)ie83xkm ,+b.vravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the w-qjfqv*g; 8i air with constant speed. Which one of the following choices correctly 8g-*qj; vfwqidescribes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is th2diq.+ (c o(vo ylvbzra.qu6 .rown by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball d.quy.+ozbl .avo(i q6cvr (2exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book :oz1fb:noty ( 3fhqj/ is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exerts on the bjh1(o:fobzfn y :/ tq3ook?

  05.06: The students in a Physics I cnmns7z 4:re2nssgj) 4lass were in lab conducting an experiment related to Newton's Second rz n7smnsj44sg2 :)e nLaw. 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 force45 szx;n.1zwjf qw3kq7.xhw d on an object were doubled while at the same time the mass of the object was halved,then the acceler.f74dwzqnsx . 5kxwz j1; q3whation of the object is

  96.15: A car whose mass is 1500 kg is accelerated unifl ,k3u u,zo;quormly from rest to a speed of 20 m/s in 10s. The magnitudeo ,,3lku ;uuzq of the net force accelerating the car is:

  99.05: A tractor-trailerw+/wxy-ie; s a 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 that the trailer applies on the tractor is iww+- xe/y;sa

  99.16: Which of the following principles best explains why large tractovxcc 4)s2i vx-kbi :,gr-trailer trucks generally acxvs)v:, 4kg-xi2 ccibcelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throwpun) m:c pd1o4vj(qj92/wc8tb w6a ics a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which stat:bi42v()tajn/1 8w doc qccm6w u9jppement describes the subsequent motion?

  00.13: An object near tv+nu: o-/uwln f h*-t.wxyyn7he surface of the earth with a weight of 100 newtons is acc+*7 -h-uynn/nl o.xuvyf:wtwelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass g;n-)smzpi3+l r4zk; rab )mwis 1200 kg is accelerated from rest by a constant force of 2400 N. What is thz4b-l m3z)sn);;ira mwr pkg+e speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with 5v;kb)u:+q n 5eb,nbc(,-iw f pfjks* 4zcgln initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acti;q5pw-5u* cg+vej4 bf: bs,iz )nc k nnlf,bk(ng 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.ja fg:9 6k h+(jjkj;vjji42 ah0 m across a rough horizontal floo 9v :fa6kjg2h; ai+j(jjkj4 hjr before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at resb48(8 e.4lhtwnxya xvj,fd n9t on a horizontal surface while a person pushes directly to the right on the box with a force of 60Nhty.x fwbl9(4n,dxn j 4a8v8e. 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 initialz yveu lee;,7+11ejvvly moving at 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a dist1 vu ,7evyz1ev e;e+ljance 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 u 9(-hnbuk zj)beug*+ a speed v with its brakes locked. It then hits dry pavement and skids *9b nughz ebuj-(ku+) 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 ice at a3a);ce + awvj5tel dg4 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 dry road i3del4;j+cetg5 ) awvas 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 brakx7ptzb4 ,5j lrzt/ f2ues and skidding to a stop. Hozl rz,5/xu4 bp2tjf 7tw far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carehmbn0xaq3 -)bqt 02zgg p4j t4fully control each of the following devices. Which of these devices can cause an acceleraxg02qb tg- t4hn4m aq)jzpb3 0tion 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 np9e 5 okr04u5l0vmukm ewtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeo0oke9r5kplmum 0u v45 ff?

  07.21: A box slides to the right acoqt01avh-7;m7o4bhx8lsf cq u 4s yz7ross a horizontal 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 right, rank the sizes of these three forces exerted on the bo1tm4;oqyshzs-c47o78hux 0q7v f bla x.

  02.27: The diagram below shows three roller coaster tracks of equal lenny h3/e8qu,togth. Assume that on all tracks the roller coaster carts star uohye,n3q /t8t 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 rollr-k s8us(ky:pz+1vmzu 71 tn.yobw k (er coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to tsy.wk v(knk zy:(+r-botz1ms u8 71uphe 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 rooaqi)o (y2 x:ic4hwd2o, v0emllercoaster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What wo0a)qihvi(x 2o2c,moyd: e 4ow uld be the direction of the cart's acceleration at point

  02.40: A box with a mass of 5,bv 6q0 rvhknmv/0hg hkf8:.m0 kg is dragged across the floor by a rope which makes an ang mb 0:hvqnrhk.8v60,/k vhgfm le 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 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 ino xm;gkxj fo-3c4 8d s/.f;qqjitially at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinet4qjfd; jmqxsx .;oc- /8f3gko ic 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 lawn mower across a horizontal patc+b19y nzksr(c h of grass with a constant speed by applying a force P. The arrows in the diagran 9r+1k(csbz ym 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?

  06.14: A book leans against 5q of:uu-. tel:m*vaca crate on a table. Neither is moving. Which of the following statements concerning*ve .ufoc::umlt- qa5 this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pupue1:d,w jg krzqb1 a)v+.yt0or1 w1 blled up a hill weqg z, 11ojubrr1 vywap:1wtd+0bk.)ith 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?