99.36: What happens to the inertia of an object when its velocity ise7q sv 6ivx(-e doubled?

  02.14: An intrinsic property of ma f;ax5iusw. k2tter is one that does not depend on the quantity of mi5a2uf .;sxkw atter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of ti .p v(eqk5:xosj wv68lfp+f /7)vtyhhe Earth. Assume the Earth has mf6+7vp ) s y litxefjvqw:.k8h5/(opvass $5.98 \times 10^{24} \; kg$ 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 frewmgp4j2 gnn x+f :3jx,akp27(5aapj x e fall near the surface of the Earth. What is the mp(a,2 px5jp7:x afg+3 gjjx2 nnka4mwagnitude of the gravitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for * isvev/m,vvd 1+c,o man object’s velocity to increase while its accelerationv,,eo 1cvisvm*v/ md + decreases?

  00.11: A certain particle uvs6 cxdd *ga,8ndergoes erratic motion. At every point in its motion, the direction of the particle’s momentum is AL* ,g vscda68dxWAYS

  17.14: A block is suspended ini ehda qd2f(8e rr-2q. 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 Newtoeq2ar q -iefdd.2rh(8n’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the following situations is the net force constantlng/o3 n.:u 6tz vke/yay zero on the object3.t/ 6au: ozvk ny/gne?

  13.28: An object is i07:vq 1x1w1r l pxuimzn free 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 magnitu1r1vxq mu7i1lp0z: x wde 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 forces, F1 of 30 N, Fqu,xqp 3cjlp0.y o:. z2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and F2qlu.pp qj0o 3. ,yczx: is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine2 fvwa t )kmu-ho87f8e to form a resultant with a magnitude o-7fumwvkh)8e8tof 2 af which of the following

  10.06: Which of the following stateu 7uae8j+r4pa/s wc(tments is most closely associated with Newton’s Third Law /ue 48+ rwjpas( a7tucof Motion?

  95.06: The reaction force does not cancel the action24rxq+a4cu m29r v ywi force because:

  14.14: A box rests on tre5 pk 4dr2r3rkv- /qche floor of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acrkr-rp 4d53 /cerk2qvting on the box by the Earth?

  15.15: A skydiver falls downward through the air with cok:ok +;e xp2ltb7;sl1 g8ggsl nstant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the sk;;bg8 p xltgg7l k+s:kleso12 ydiver during the fall?

  06.08: A baseball is t ,jje4:yved2m hrown by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bat isd2eev ,m:j4j y always

  11.13: A physics book sits 1y n*pvr4c); ho5o bsuat rest on a table. On top of the book is a calculator, also at rest. v *bnopr4hu1ys; c5o )Which one of the following 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 Phcw50mktptknpj,q6 7 3 ysics 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 graph, what conclusions can the studentptc, jk0k6m5n7q w3tp s make?

  99.03: If the net force on an object were doubled while at the same time qm+jc d;h3q ) t4jkcb+the mass of the object was halved,then q +3cc)hdm 4+; bqjjtkthe acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated 0f 1r 7ijmvm q+24xm0zjg)wfnuniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force acceleratin+ m4vr 2qn7 1j0w0fjx) izmfmgg the car is:

  99.05: A tractor-trailer truck is traveljfr9 yp+ 9cy5/hjlki6 ing down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that th5c jjkrif69 ly 9yp+h/e trailer applies on the tractor is

  99.16: Which of the following principles besk+okr+, uh /zyt explains why large tractor-trailer trucks genera y,uz kk+r/h+olly accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogrs* /2qc.qqa vb ,s7wxom-pjc jhu-l ;,am ball, giving the ball a ve,, q q2/wlb;-. *pco 7 xacjvhujs-smqlocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of q zuu uw in0wy(-07p1 jmxmd,(the earth with a weight of 100 newtons is accelera1nm 0q ( 70duw,miyjx(w-pu uzted 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 y5*+z6qdon tn by a constant force of 2400 N. What is the speed of the car 8.0 s a d*56ytznnq o+fter beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rahkh+f-g pq -qjw) g4*ough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before c-4)-ghkp*qw + gh afqjoming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m acrosw-rzhg - z+jm3 5y2iya)z9dgvs a rough horizontal floozgmd 5azy2j+w-i gh zv r3-)y9r before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a pmdu3l6 7potk;i-w3 h n2to.sk l1*yzcerson pushes directl sw oc63y1p im odnultlh;*-k2t3k7z.y to the right on the 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 moving at 8 m/s acceleraof4d4w*3x21 cwk mdidtes uniformly to rest on a horizontal surfifmd144d wd*wkc ox 32ace. 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 of ice at a speed v with its ot0,vj)c: ltx0l)l fdbrakes locked. It then hits dry pavementd0)vt:jctx ol)lf l, 0 and 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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch pwc eni.s6fl4.* ma5z 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 andp 5*linm4w z.eafs.c6 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 bra:wop*cjuinl 5;z+xsf 7 2na7e kes and skidding to a stop. How far would the car u;ojnn 2il*a:z5xw epf 7c+s 7have skidded if it had been traveling twice as fast?

  99.39: The driver of an autom6 kh8t9alrw;zfzpy5 irqd mkq04 +89zobile must carefully control each of the following devices. Wh q 9w6zkdr p059 zfr4 ;alimtq88yzhk+ich 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 n43judp8x 8z grwtyzg6qj :z7toe9 q79ewtons. About how much time is:7 z xy tq3pgtzgdr8 9wzje7 o8juq469 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 horizontal floor. A person c:ytgvt9 a4lj+ alled Ted exerts a force T to the right on the box. A person called Mario exer attlv g9y:+4jts 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 shows three roller coaster tracks of equal lengt vx 6g6:tmw f4i-zyu/k*s xhh.h. Assume that on all tracks the roller coaster carts start from rest at*yx6sg4 m:zwf- 6iht vh/kux . 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 sh,kda*sv3bp 1x u4eld 7-c2ijbows 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 frictio172dv p- siljbku abe4dcx*,3nlessly 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 rollercoado q3 b5klz o569mkzo5ster cartrolls frictionlessly along the curved track from point A to point C under the influence of 3o5lqdmb5 o5z6z 9 kkogravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the 9 d)*m+h m) 5ziqrefyzfloor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient of kidrqzm h+y) f 5e*9mz)inetic 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 at39im.5mk dwvy0/yf:u vv9po t rest is pushed against a wall by a 100 N force as shown0utm/. ipvo59y9 3ky:dmwvfv. Thecoefficient 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 horizontal patch of grarxq(g(z4nn4fzx .gs*, n gg;nss with a consz sxngn4z,gn.g(( rgq4 x; n*ftant 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-1hb 3hv un)bp a crate on a table. Neither is moving. Which of the folloh u b3pn-vb)1hwing statements concerning this situation is CORRECT?

  06.15: A crate of toys remaj l 7a:d8-p noqodpm;/yy7 3b; 2jimpbins at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. jl;p ob yq2 7/3bdmiyn;p-m :jpa 7do8What force is responsible for the crate’s increase in speedup the hill?