99.36: What happens to the inertia of an object when its velocb9zo-ws cdq8w6 +ckw4ity is doubled?

  02.14: An intrinsic property of matter is one tk6dv.so8yqlt(j: n yxog r/ 9/hat does not depend on the quantity of matter present. Which of the fvj(:tn.g8/ osqyrk ox yd6/l9ollowing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder ryw0qzuic l1z66 g 6;rxests on the surface of the Earth. Assume the Earth has m ci qg6ruw61z60;zlxyass $5.98\times {10}^{24}kg$ and $g=10m/s^2$ . What is the magnitude of the gravitational force that the boulder exerts on the Earth?

  09.12: A 5.0 kg sphere is6npzxr72c)2 g-g4nj nghad/ w in free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth masjdn/2acgr64w2) 7-nhxnggpzs is $5.98\times {10}^{24}kg$ .

  00.09: Is it possible for anwx6 wq1 jhe+9dh-e* vu object’s velocity to increase while its acceleration decreae1 96-uejdvw h wxh*+qses?

  00.11: A certain particle undergoes erratic motion. At every poi wvm z ous;ywkegw3v4(bz*274nt in its motion, the direction of the particle’s momentum is z*k;veg3v w(mb s 4w4u 7yzwo2ALWAYS

  17.14: A block is suspended in the air at the end of a ssd 2q:0 xcm0d*ttcwm .;xxowbk/3r3l v,p,lr tring held by a person. The person pulls on the string uniformly accelerating the blpl 0lw0mtr,/xdwqo*cc b:d x. 2 s3m v,rxt;k3ock 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 situation v(hq7oubs79j ak ;g2ws is the net force constantly zero on the object? ogw j7(k svqb;2hu97a

  13.28: An object is ina htu 1x8fc1s-pypv 71 free fall close to the ground. A person intervenes and slows the object uniformly to rest. Whic1 au 1xtp78vcpsy1 f-hh 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 acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forfltpo a9.,p wzzcz3mm9.+83 2tbjg sb ces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the 92jcpttw l8s9.azm,+ b 3. m3ozfbgzp resultant ofF1 and F2 is

  01.07: A force of 6 Newtono(x zh 4tori4f+vig49s and a force of 10 newtons can be combine to form a resultant with a magnitude of w44( fhovoii+r 4t9zxg hich of the following

  10.06: Which of the following statements iw 9fv jeer;1zgt2d0v:6zv hq/s most closely associated with Newton’eq 9 ;/rd6gz2vf wjv:e0 hvt1zs Third Law of Motion?

  95.06: The reaction force does not cancel theh5foh9 .dxra1z e*+l c action force because:

  14.14: A box rests on the f7xfthz.pli57dl a7) jloor of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair forcedzxh5j7ftpl7i 7. a )l to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. dp f:wuz+i7r.psrx(. Which one of the following choices correctly describes the Newton’s Third.7r dx(.ppzfruis :w+ 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 /.tpu by,oo1 qpg807lecj en*cup.(y of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exer7l.y(o eoup,0u qp/.8nj1tp ygec *b cts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a ca j6wbf fl(dt:p/97 yrxlculator, 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 y j67b rl9x(dpfwt:/f the book?

  05.06: The students in a Physidi m0;vjx meyzo+i0. 2cs I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this gramyi izeodm;+v 0 .2j0xph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while anx*. - glt;ovjt the same time the masox-l j*gntv; .s of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is ah5;.m:oo rdt1500 kg is accelerated uniformly from rest to a speed of 20 mroda. ;o:t5hm /s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trai54e6- d.eghpm v:sfgq ler 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 tractof.s - hd6eqg:5eg4mp vr is

  99.16: Which of the following prinjw v8qxf8e8urmdb 26u i.dud ik38y66ciples best explains why large tractor-trailer trucks generally accelera63288b6mixwudku d vfryd8q j6ei8 .u te much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogram blkqjqy.7ow,o3wzgr6o ; c ;2wall, giving the ball a velocity of 10.0 m/s. Which staj3 2,og olw;qqyo. wc6z;k r7wtement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weu-qcu q2ha- w5g cd:b/ight of 100 newtons is accbhc 2qau w:c/d- gqu5-elerated at $4m/s^2$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated hx,lek3 (p 5by-p,v- he huwxfrdo74.from rest by a constant force of 2400 N. What is th-- 4e.rx3(7 x vh fpehlbuw,5hoyp,d ke speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block w6*/ s mybekkf1o+a +yaith initial speed 4.0 m/s slides across a rough horizontal flo/ *yaam+1yb efk6k+so or before coming to 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 initialr9b 1w,ke ;,zrnge5*wq z- ffm velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. T rwq;1fbfzn em9-*,,rz5kw gehe coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal 8z/c1wz17fqa(c k y,a x4 vpelsurface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the sura qez1f, zx8(a7lvyk4c p/wc 1face 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 accelerates uniformly to rest on atke (nbkf.br ta 3v,fsl57)ihj)6 o /x horizontal s v onh.xrkft3tbe6k))j if a5,(bs/7 lurface. 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 ofylrr *7x 1o8vf ice at a speed v with its brakes locked. It then hits dry pavement and skids to aol8 *1ry rvxf7 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 a speed v with itk*i g87zye*af z: k(azs brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficienz 8 *e7gfk*(y a:azzikt 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 theqx20nlkd9t;rs o wd6 hdwvr /31 9m.ke car's brakes and skidding to a stop. Ho9;ek d9 lv 16/r3t20nxqrk. wdmohdsww far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must cz; kwae 07mv5iarefully control each of the following devices. Which of thew ka;z5v mi7e0se 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 nfd+hygy +; mg 3:j; dkp ;ydcb)(p0duis 24000 newtons. About how much time )kd j h;mg(ny b; +3dy+d;y0pduf pgc:is 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 right across a h0dm ep-mn0yc7;ert. norizontal floor. A person called Ted ey 0cpn nem d;r-te.m07xerts 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 box.

  02.27: The diagram below sh7is tgmx) 69lb)uuyr +ows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster cat+7)riub 6u9ylmg )sxrts 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 lengthqd/n:)kgjb d67ek( xsz e- w+y. Assume that on all tracks the roller coaster carts start from rest a 7-/ je)kyzg6b: knd +ewsdxq(t 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 frictionlessly along the curved trot1 blels q:8f:d vto)9c*dk6ack from point A to point C under the influence of gravity. What would be the direction oo8f6 t bc:*dt9qse1)d vk: ollf the cart's acceleration at point

  02.40: A box with a mass of 50 kg is jlm3s7qsc:i8hlynu ;7*b h; l94z tdfk t//dwdragged across the floor by a rope which makes asd/ql*iluth;f7s8mh 3kl4 c/tn7z:dbw ;9 yjn 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 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 initiall buv7pda:ddf9fx 1,y, y at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50d, a91fd,7:vp xdfuy b. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pusmw s3*+ bg3vxohes 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 forcesw3 b3gox+ vms* 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 a crate on a table. wnf,q3 0 ia:cw-*gdlz Neither is moving. Which of the following statements concerning tdz:lg*3fw ,-0nqca i whis situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh i 3 vny)-k7hnjyx 4(fils pulled up a hill with an increasing speed. The jy4yxfn3l nhi)( - 7kvcrate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?