99.36: What happens to the inertia of an object when j85;vyyvefb4o )vw j) its velocity is doubled?

  02.14: An intrinsic property s 4l*necq+c i/h*-)uunk2auaof matter is one that does not depend on the quantity of mace-k cn) as4i*u*un/ua2lhq +tter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth has yr( x 5a47n9fze6ahar1hdw b)mashd7a9xehrn rafw6)1za by (45s $5.98 \times 10^{24} \; kg$ 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 nearplh x9kr53 ur/ the surface of the Earth. What is the magnitude of the gravitational force acting on the earth ulph rxr k35/9by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible fyyx01597yr/ , st+fom e9vz2ut scmkz or an object’s velocity to increase while its acceleration uy1o+ mkmt9s9f,7 t0z/2 yrycv ze5 sxdecreases?

  00.11: A certain partic :w q4 w/8v.wsjhgoou-le undergoes erratic motion. At every point in its motion, the direction of tuosw:.jw ho -q4w8gv /he particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a person. qy qx6)pixypq6m83dy6 y -2taThe person pulls on the x m2yx36q8ay qy)-6pqdt6piystring 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 followingftd 4--5z*h 2xacujf d situations is the net force constantly zero on the obj-cdft xd-u5 4*fzha2ject?

  13.28: An object is in s-g tg:o i:ur4be ki.8free fall close to the ground. A person intervenes 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? tsr:g: eik84.-ibg u oThe 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 ;knormrl, y 36three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnrrk3nl;, oy6mitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons cf 9ml2,lpn1hn an be combine to form a resultant with a magnitude of which of the9n2,hflnm l 1p following

  10.06: Which of the following statements is most closely aer s3sgn9wx: +ssociated with Newton’s Third nwe39sx r+sg:Law of Motion?

  95.06: The reaction forcecm8j 7d 8 vk:xt7eh/pl does not cancel the action force because:

  14.14: A box rests on the floor of anpfpmdz 8a daaaz -j1v.9u;7a- elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newt8am7-;avjp azuz91af-da.dp on’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 sp nao d5lj5l .g:kuai * j5y2c8ota//rmeed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during thej8:mr aua 5a55oyo /kg.n2 / j*ldtlic fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. 3*mexq(p l+m asqqgl9 ej 4c/3 The batterswings and hits the ball. The magnitude of the forcp3j a qm*/39l4lex (sqmgqe+ce that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a tabpfezrix :7(1eqb 6a) z +hvvi :*0lmhlle. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the fvmq ih+6 ( 0ilz:17f eea:hv)bplrz*xorce that the table exerts on the book?

  05.06: The students in a Physics I cf6hpfo z3dom (p;*j:g lass were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right3h(; g *6fzfp:o pjdom. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the same tim6s ) m: j6muffyfg+5wpe the mass of th+wf m5f 6suy: fjpm6g)e object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to aggleze7h 6k enu/k/ 6nz(k2r0 speed of 20 m/s in 10s. The magnitude of the net force accelerating the 0( 6ghe/l6kekekr7/nz n uz2gcar is:

  99.05: A tractor-trailer truck is trs pvhm14wr njlg ;)y*0aveling 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 appljywsnr4 g* vp1 0lm)h;ies on the tractor is

  99.16: Which of the followingzb,j* gjtcppa43: g:fbgb13f principles best explains why large tractor-trailer trucks generally accelerate much more slowly that 4j,*:c3gp g:fpbtf b g zbj1a3automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throwx: 0 g2gkl6umis:t;k9a m 9vjjs a 2 kilogram ball, giving the ball a velocity of 10.2jlgx6 skvt :m;a: 9 kj0migu90 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newtck 7yi0p 5y(z8 jmqjh:ons is acc0jz ji5( q78hy:p kymcelerated 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;d5rxg+fk2v e a constant force of 2400 N. What is the speed of the car 8.0 s agder;xk +v52 ffter beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m.;4mu re5r r ybt-gu k,*ojlj./s slides across a rough horizontal floor before coming to rest. The frictionalt r rer.,4 ulj5o.uy g*mj-;bk 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 slijv4b-k-948 z othrxfddes 8.0 m across a rough horizontal floor befo4t-ko 4rz-9jxfbv8dh re coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remainsa19ih50k9 x j:a kgeho at rest on a horizontal surface while a person pushes directly to the right on the boxa0a :h1k5x99 o hgkiej 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 initiagnh(zpykk i9(h: 7x vyz tk544lly moving at 8 m/s accelerates uniformly to rest on a horizontal surface. The blxzk v4i(5 khgz(ny :yp9 k7ht4ock 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-cv 5gs*-gxnd slides 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 friction between the tires and the dry road is μ . -nv g*xdsg-5c
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides acr:hf6 n+e5 hp u,va4cbgbe v ou-/o:h6ross 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 cohfhb6u5v,c ::vp+-oae 4bgne/6uohrefficient 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 um /wrxrahguy(r 31; h1s 77jacar's brakes and skidding to a stop. How far would the car have skidded if it had been traveling tja; 1rrs1rgum/3xu7a 7h( h wywice as fast?

  99.39: The driver of aef8*gwpbaaeid cjce5gk2+t ft(uo1 :9f9; b*n automobile must carefully control each of the following devices. Which of these devices can cause a (tee9ajg5c; bp 2+ gtfdf*1w :e8uof ck9*bian 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 1500u(937wk. gnrqzk ortt3sjm,) (/ gugn0 newtons is 24000 newtons. 39juk.uzoksg( )tr gw,r3nm 7 qn(t/gAbout 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 takeoff?

  07.21: A box slides to the right across a horizon - otv:yu-xg*rjrl vqr4/8zqv8 ve2l.tal floor. A person called Ted exerts a force T to the right on the box. A person called M4-vv* /xuv.:jq-y 82z g 8rolqerr ltvario 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 sho6qf bbp)lc m;ch+ 7,brws 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 frictionlessly over the tram7cb b q),prl chf;6+bcks 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 qhz v dut,jsxnl:oq17)(2t/g roller coaster tracks of equal length. Assume that on all tracks the roller coasteudtz sgq 2)7:1vj(q,lh/oxntr 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frgt v)641u 3khr2yzl jcictionlessly along the curved track from pov24k)r ch6 yltjgz31uint 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 drago-,4whvf h;/pb-r- vys x8wqrged 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 between the box andyrov- /wwx8p f- rshvb,h-4;q 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 puf83 4pl8dhc lmkz scc3zu9q :/shed against a wall by a 100 N force as shown. Theco3:sf l8l98p/c 3 zmc4zdqhkcuefficient 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 lawn mower across a hwim j1b+ *f 4nyippd.d4c26gc orizontal patch of grass with a consta4nfj.mdpc6* + w4b gy2 idp1cint 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?

  06.14: A book leans against a crate on a tablb5hhy34hmv es a5iu63r q3 1bde. Neither is moving. Which of the following statements concerning this situation is CORREbb eruyd shq6h315i3 v m35ah4CT?

  06.15: A crate of toys remains at rest on a sleigh(gp;) 1v-uig.qedd:r:lue fs as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s i1(risdd:ueu -) q;vg.:elg pfncrease in speedup the hill?