99.36: What happens to the inertia of an objdisuvmy8a 4h/wen+3)x/+.h 7 lqx kamect when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depen8nr0wib-x u lz1 vbx.xtbm3jt7a *:* gd on the quantity of matter present. Which of the following properties is NOxx0axnvitbbu3r*:m gj w. tz78l-1* b T an intrinsic property?

  04.16: A 20 kg boulde lu+mex n/g6 gpd la(tsh8e.((r rests on the surface of the Earth. Assume the Earth has malgph(al 6g(e/ue.s8n( +md txss $5.98 \times 10^{24} \; kg$ 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. Wha1 yk5aq -4tqykt is the magnitude of the gy-kkt1a4q5yq ravitational force acting 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 nqh,l7zwx5,xjxy-g ;v-f0rbto increase while its acceleration decre jn; ,lb-7y,xz5gvxq f-hx0wrases?

  00.11: A certain particle undergoes errati:t* .,q6zrofo5a t aivc motion. At every point in its motion, the direction of the particle’s momentumo aqi6*rot:5ta v,.f z is ALWAYS

  17.14: A block is susp(xnyp-h6n ey8ended in the air at the end 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 -yx8e np6y(h nLaw pair force to the force of the string on the block?

  07.18: In which one of the following situa tdn pqqy 1ywv.y7-96ztions is the net force constantly zero on the y.yq-w 1nd9 vtyq 7p6zobject?

  13.28: An object is in free f6 culy: uh dzp+pe,/l(all 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 o l,/p ldcuy+6(e u:zhpf 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 k2+4rb/6;h7wgl rjig b+ftg f i.)oqeforces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting jfig7rkfbq +4+6lir 2eg;h bgw t).o/ 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)3tdzqqt 3ui;ui-w+h2 b hsz - be combine to form a resultant with a magnitude of wh-+sq;t uq3u) ii- hd bwtz23hzich of the following

  10.06: Which of the fok 9a) i+r7p8 j4sqktjwllowing statements is most closely associated with Newton’s Third Lk4j)r s8ji7 9kwq+tp aaw of Motion?

  95.06: The reaction force does not cancel the vld0n0wj .awq3 ; n0klo:f c38 ;vfjyjaction force because:

  14.14: A box rests on the floor of an elevator. The elevator is acceleratkrkhdzd5 o .f +qc*f5d 2vdx ,(xk26yding upward. Which one 2,odd ky2 c 5.z xfqrd*(hxddf5v+kk6of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward throuv0b2r,-z9 /tk;,bdzey ;g v8uz tgke bl7.ukkgh the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver dutby8ez7 b;zu;ev gz0k2 , ,k v-gdl.br/t ukk9ring the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. The battel7psk.1j5i8 mpj xmw 0rswings and hits the ball. The magnitude of the force that the ball exesi p.8jjk17 wm0p5m xlrts on the bat is always

  11.13: A physics book sits 5bs xl6 fa(js3at rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is thebfas(j xl3s65 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 expere5nn,+pf tq/f iment related to Newton's Second Law. The f/5qfn nt p+,ecollected data 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 time the 5iwjdj).;kofxv egbq, 2 tptss/ 9m11mass of the object was halved,then the.2g,;qktov s tm )idxesbjjp1w1f 9/5 acceleration of the object is

  96.15: A car whose mass is 1500 kg is accuhbkq7;e 2c j1elerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net forc2 qh1 cjb7;ukee accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the trimm *gf t1c2- 6(1rscxmf c+;f muh,qqailer is 4 times the mass of the tractor. If the -m1; m2ti *crhf+u1 cc f6smgx(qqf,mtractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principj r,ec:p2 gwa+les best explains why large tractor-trailer trucks generally accelerate much more slowly that automobilgac ,r+pj:2wees?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogram bbqyutxwi6 e8g.x3 v;4all, giving the ball a velo468.g xxituew;qy3 v bcity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons is ak) (vi(a 1np y:zljfe.ccv np:1 (zjka)(yel .ifelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass wwnqs ;n hjmo6 *t28l5is 1200 kg is accelerated from rest by a constant force ofjhww os*685ln t 2;qnm 2400 N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slnbr dagg8q2v 5f)o c92ides across a rough horizontal floor before coming to rest. The frictional fobc a9 8f 2qrn5gd2gov)rce 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 slides 8.0 m across a roubw kc8.lswi0y9 4:*eethh ; xfgh horizontal floor before coming tw tk8feb*hl;s yexwh:9i4c0 .o rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizoa/w x dhin9am -d)q*a0a;,xst(c4 gtg .rv;xd ntal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kineds*/)vmwhx ,qg gn;aatt49ax d-d0.x ira ;(ctic 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 moving at 8 m/s accelerates uniformly to rest +zfslf*7-e(uenxxw+jxv 2 g ,vh ja :)on a horizontal surface. The2(hge*vje 7axn)+x f+ -xw:flsu v,jz 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 of ice at a speedr9q 4xnv+ ,oqh v with its brakes locked. It then hits dry pavement and skids oqn4hxrvq9 ,+ 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 a speed v with its brakei/fzr o9k, abi8l7uw s 4z)uh3s locked. It then hits dry pavement and skids to a 83)uuzl, shof7w /raii4b kz9 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 slai.6h oi0. ngzrmming on the car's brakes and skidding to a stop. H.nh0i. izgor6ow far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each (q,3x;kp8r jf bnvvr/of the following devices.pr/vk q8x;rbnj3 v(f, 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 a rocket with a weight of 15000 newtons is 24000 newtonsvg2mdz, iqk (zz o+e8j4qo)+s. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of th)( q ezz24ijzsv q+o,8ok m+gde Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A pehw -zh.v6/ dnrirfz5; m9*hoprson called Ted exerts a force T to the right on the box. A pe*wmhfh pvr;hdo9znrz -.6 /5irson 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 belos;e,di )oca :zs3:dow /9ci ulw shows 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 tr:idi/c;d ol3 9c oasw,ue: )zsacks 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 c p l62t5zd3+t.5i/vlyhn rjyc,rz.tcoaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves fritr2lli .3ttcv/+5.djrcyh zpyz,5 6nctionlessly 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 cumqulj-- s9c 24lyqp a2rved track from point A to point C under the influence of gravity. What would be the 9m2 jq-y2uc sp4aql-ldirection of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is hgy+,qbcjs ;2dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the+ q, j;ysb2hcg 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 initially at rest is pu f/)m9;fr+hia 2k mf4 2kbbldxt/f7fpshed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is d/ffk4b rmtmh fpl 97;fx/a 2f +)2ibk0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower a+ :m6h,fru wkocross a horizontal patch of grass with a constant speed by applying a force P. The arrows in the d+hw6 rmof,: kuiagram 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 t1+osh1 yp:cwx able. Neither is moving. Which of the following statements concer:yx11hop+ w scning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled aw e amzw k ,39rnz gt6+kw3osgm/i725up a hill 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?w2oea/,g tkm7+rz3 6 w amzn3kwsi5g9