99.36: What happens to the inertia of an object when its velocity is doubledkg sw)auw1:b9k1 r t8d?

  02.14: An intrinsic property of matter is one that does not depend on the quansiy knh(txch 9:i6 *t0tity of matter p6 khxt: ns(i9tyc h0i*resent. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume twi/brrra19 svm2b9+the Earth has mawa9bmr/ rvit br 21s+9ss $5.98 \times 10^{24} \; kg$ 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 Earth. What is txxb6 6tf- 7*d1 jc2 zapjj.wnihe magnitude of the gravitational force apjd1.xj inxbjt f7-zac *w662cting 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 whilif2 d,6a mna a7ps.qw-i3 y.twe its acceleration decrsaani3wd 27.-qy6i,. matw pfeases?

  00.11: A certain particle undergoes erratic motion. At every poyt-mf .,0y vyx 2jgq0 tygv jy1)fxq*+int in its motion,x + y fx)gyf.m2*v1v0jj g,qqy-t ty0y the direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of gd; xdm,w 42jya string held by a person. The person pulls on the string uniformly accelerawj ,m; d42ygxdting 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 fx +-csvo+d2bsxc,i6 eollowing situations is the net force constantly zero on tcvd6b, s +2soice +xx-he object?

  13.28: An object is in free fall close to the ground. A person interiyhrj3a 9ouz ;;g;md 9 3kee-gx y6d;cvenes and slows the object uniformly to rest. Which one 9 kdj;u 6;hzgim-yx39ge3 dcaeo y;;rof 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 threek-ui;xzf7c20u;o5/woedt6kf x ;xou forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 anzw e/o5;u ; uxk xkfoot072cu6i-f;xdd F2 is

  01.07: A force of 6 Newtons and a forh9is / rr+jcod1 ys5)sce of 10 newtons can be combine to form a resultant with a magnitude of which s 1isd)9r+ojyh s5 rc/of the following

  10.06: Which of the following statements is most closg 84f eb0.ix 8tihmv8iely associated with Newton’s Third Law .thi fi g84eiv08 xm8bof Motion?

  95.06: The reaction forclz2 buj8ybhkfu /eq7v 3.:fo,e does not cancel the action force because:

  14.14: A box rests on th-qlac,ogytn z+kg57 -e floor of an elevator. The elevator is accelerating upward. Which one of the following choices best representsn-- yc, qt7a5+golzkg the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speediw.c vv5 rmf7.. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the iwv7mr5. .f vcskydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. ttpoz.thi:m09.oj4j6/ i upbhzd6p; The batterswings and hits the ball. The magnitude of the forceptibj 6tdi0. o6 tz/hmu4p9 jhozp;. : that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a y q;c+kdyct2w,v5tnol54r 9ucalculator, also at rest. Which one of the fol lt ny5u,5wr24 +cqv9ykdo;ct lowing 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 conducting an ex04xbflt . p 6kgs;c6 2mmktd4xperiment related to Newton's Second Law. The collected data were displadk6mg 4 4xbxtl.2fs c6p;0tkmyed 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 ticgup d/4h*z gr dz7pzqm3h:4 *me the mass of the object was halved,then the acceleraup7 m/r3q:*d hgd*4 zzzcghp 4tion of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to abi+; 6 rkffpy(m 0 0b3ylltx.dk. uaa: speed of 20 m/s in 10s. The magnitude of the net force accelerating tutl.fa;.x(d3rblp kk 0i: am yby+06 fhe car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of thetxjz+-,31lx y5vqkk u trailer is 4 times the mass of the tractor. Ifu1x kvqj-, +5t3xlyzk the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following;* m d0yin)oyng;j 4md principles best explains why large tractor-trailer trucks generally accelerate much mor y imdom)g;4 j0;nnyd*e slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a fric hd 3 ree*xqmmt84gc)5tionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which sm8e 4dgqc5*)x t ehmr3tatement describes the subsequent motion?

  00.13: An object near theg7 w6clne,b5s surface of the earth with a weight of 100 newtons is aclsneg7b, c5w 6celerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerat;.n 3hntgl:h ved from rest by a constant force of 2400 N. What is the spee3v :nh.gn t;hld of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with inis::ryi6 uax +rtial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictions6a : i:rrx+uyal 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 vel,-zfktm tt+sns7sr;+4 xb b ;jocity 4.0 m/s slides 8.0 m across a rough horizontal floor bebkt +xbsmt j+tf ;n-7;,4rzssfore coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a personvjo.2l k 9-admu8cc(r pushes directly to the right on t-9 makr8(o.c ju2lcdvhe 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 mjl fs:6x +est8i, e.;. ct)u upju6taul) p/ztoving at 8 m/s accelerates uniformly to rest on a horizontal surface. 6/+atesxujuj6 pzs:, )f.tl)i pt l8cuue.;tThe 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 sl0j;r7n ng :8 guh +bnwcx ,1gy85bedqmb ct+,nides across 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 frictio crbcu+b8g +j 8mw,g7gbdneh5ntyn n ;x q1:,0n 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 k0sk3 xny pz09at a speed v with its brakes locked. It then hits dry pavement andxy00z3sk9 knp 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 emergency stop by slamming on the car's brakovbm zyat9./ vmkf6 /-es and skidding to a s- ob/vma 6tzykv9f./mtop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully m ya3tnf8gh1ih:q l8) hmze) *control each of the following devices. Which of these dev n ymq13:l*)t8fhh i8ga mhe)zices 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 15b(/ :tp 6tpvmz0 ihc9r000 newtons is 24000 newtons. About how much time is needez9mp(c/tt p60 :ir hvbd 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 acrossc i;0ge szn5/f 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 frin z/f05egis c;ction 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 lengt-q9fcsvqh)a,0u c( zo h. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly )(oauc qqszf 9 0-hcv,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 shows0e*+ 9 mwlvxix three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves f9i 0 lvexwm*x+rictionlessly 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 cartrollh.t*ccrt z 66vr 16i hxcp5k;zs frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleratiot6htp* .hk z1ir vcxc6cr56 z;n at point

  02.40: A box with a mass of 50 kg is dragged across the floor b5yjo a *296hc0 zzubjry 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 c90j2hyr5bo aj zu*z 6force 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 ini(nq5f4 cen-k(r8s* 7 qqe 0hxtk3ztaltially 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 0.50. What is true of the frictiaf e4n708tzc kn e-q((xr s3qtql5*hkon acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower acrog(xp1jg 0 :qn w,huxbdo9+9 ypss a horizontal patch of grass with a constant speed by applying a forc9b p9g:+0(xuh1o nw dqxp,jgye 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?

  06.14: A book leans against a crate on a table. Neith9 sgtwntv5 z,4 1gi*y9uquzf2er is moving. Which of the following statements concerning this q9vuzt51z4yw29its*nugf ,gsituation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh a x/rcx 38,mimds the sleigh is pulled up a hilcr8 mxd i/xm,3l with 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?