99.36: What happens to the inertia( mgvryn*ky;3u k8th+ of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quant8gn z;r 5f6okca q)b0oity of matter present. Which of the following properties is NOT an intrinsic property;q0fnb o5 o)c 6krza8g?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume thegt l6wm4bn51h bz ;axj9g2 l0r Earth has mass bt5hwr0 g z;mlxl6bjg 9n412a $5.98 \times 10^{24} \; kg$ 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 64m n 1m6ksc s9uhnjp-surface of the Earth. What is the magnitude of the gravitational force a91 ms6n6ns k-h c4mjpucting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for andm3rveogtqf h4eu+ 0+w9*f : y object’s velocity to increase while its acceleration decrease qtfeg*9f:3+ uhor+0 em4 ydwvs?

  00.11: A certain particle undergoes erratic motion. At every point in its motionjz6aom0 iusa x3 84.o fxi)(nj, the direction of the particle’ izafo)j3. ( 6umia0x jsoxn84s momentum is ALWAYS

  17.14: A block is suspended in the air at the b(2vmcdt-(ravue;m ) end of a string held by a person. The peredvbm(;m)v ct - (ru2ason 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 Law pair force to the force of the string on the block?

  07.18: In which one of the following situations is the net f:bxt5 fjhtv(-i, u7i vorce constantly zero o(i-hibt j u:v,x t5vf7n the object?

  13.28: An object is in free fa cv4z(g(m).d+q qyvdlll close to the ground. A person intervenes and slows the object uniformly to r cmlqzdv(d) v.yg+q(4est. 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? 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, q 3 rff0h6og ,2qcpso 9;;9t nadtc(kzF1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 anh zo9;fprts;0o 2cdt,nkcgfqa63 9q (d F2 is

  01.07: A force of 6 Newtons and a force of 10 a/t64ygnk9/w3+ llkp pzl, mf dj;u6 ynewtons can be combine to form a resultant with a magnitude of whic dj;g+twkluf n a34kzl 6 ,yl/mypp6/9h of the following

  10.06: Which of the following statements is most closely associated withwtz z88x.6h w of23pcqe z0mf) Newton’s Third Law of Motion2tfh0w8zz.8 mowp qxf c)ez3 6?

  95.06: The reaction force does not c ,vllrn4m9f 2g2it h;xdmoi7:ancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accela9-nrbs ejrn7uc9a pe m06jdp;)d 6k)fy .x*h erating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravj) e ksn7 n;urx0pe*9p-)dc96 6bdyfm.h ra jaitational force acting on the box by the Earth?

  15.15: A skydiver falls downward throunoz wa23kqo 97jgk.. qgh the air with constant speed. Which one of the foaow.j zq37k gnq 29.okllowing choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pi1mvirq x h *gjf/z(63ktcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the b6rm j k*1h(/z3xqi gfvall exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top 7;ml5fd(fzn0lmba 8y of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third La y;d(0m8nbzff7lml5aw 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 experiment re .qu.ki m+f(y-po i-bglated to Newton's Second Law. The collected data were displayediq--o+p(gkm y.iubf . 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 d hi3)o)5 7rme 9m eaeg5mkqja+oubled while at the same time the mass of the object was halved,then the acceleraam+ amo)i7re5 m9e5jkqe h)g3tion of the object is

  96.15: A car whose mao a-fcmd :9n9u0(lkl tss is 1500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating dult(9 lokmf c0:n 9a-the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of then4 7f) vcxuvn t zao;p;ca/+n9oia :9d trailer is 4 times the mass of the tractor. If thnvca7x49un/ ): opva9oc ;zn iftd;a+e tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the follow+t6ke06u dg2 dqvc .vding principles best explains why large tractor-trailer trucks generally accelerate much more slouvedgv0 c2d.+66 d qktwly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictiol4ytarm ur)h9 l77 hvx.6yjgin*g1x;nless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the r* xl7.guxt1jnh g6 i9yam7y);lh r4v subsequent motion?

  00.13: An object near the surface of the earthij 4j4rpf j69r with a weight of 100 newtons is acceleratij4jpr9 rfj 64ed at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accel;j+ thhb3 z7neb:pf(y erated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after bet+zbfhynpe:3 j(;7bh ginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizonta;louxa bm-yd /vp3j 1(l floor before coming to rest. The friction -u bol (x13/mvdypj;aal 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 slides 8.0 (62 kwh;;biryfa et7jm across a rough horizontal floor before coming to rest. The coefficient of fri(;r7hebijw kf a;y26tction is:

  09.21: A 20.0 kg box remains at rest on a horiz(ru ::ib.hnx.;qal9pdds y zp2 clc+j0nd .p3ontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of ki lx :nad :2dnh l(3rsu zb.+.jcpy pp.0ic9qd;netic 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 uniformly6fdi) l qpyz83 to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best represents the coefficient o fl38q)pdy 6izf 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 i iwyk2 prz,1,id9euw fg0 e:e:ts brakes locked. It then hits dry pav2p uzigy0,:w rk1,weedf9ie: ement 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 of lgtuc/;4wf6 8q gsa* hice 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 iss84ctwau6 hg/l f *qg; 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'z2+ntn *pkdx+s brakes and skidding to a stop. How farkxn2tnz d ++*p would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile mu.; iih ue;u2 rxcb/ b7k5bf6mfst carefully control each of the following devicebh27; ui mbu5rf ;.k eb6/ifxcs. 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 newtofkgr)pq/ u51) ms 10q 6jywoq led1an)ns. About wmq) pqje5 11yn)a1flquo k 6) sgd0/rhow 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 horizontal floor. A per/nyeji1ucov u- ) q,a2son 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 ha -v1q,u2uo cyen ji)a/lf 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 l4m -x3 fjjc lxk)xjc56ength. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the kx5 xj -6)4jclxcfjm3 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 twj.4(9)bu jsyz g *fsmracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over th4 ywsfj9mj z(gu )*.bse 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 trz4r/:d) kd/hfu h, up:5zuvorack from point A to point C under the influence of gravity. What would be the direction of to)5u:hd /u:fk,hv 4/ zup rzrdhe cart's acceleration at point

  02.40: A box with a mass of 5b/:g*homvc +eutgg6,0 kg is dragged 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 and the floor if a 250 newton force on u:g6g,bgch /t+o*m vethe 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 pushed against a wall by a 100 N fofa*ez4 w) 2zt onn/:gorce as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the fr 2zwnfa4e:*/ozo) tn giction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower acrosv zd/( ysdlt(f2-p,0xp fs2 tls 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 vaz-f p,/ftt (l2s2y sx d0ld(pvrious 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 tecyv ez37x6s w1x fx.7able. Neither is moving. Which of the following statements concerningfv. 1xsce ze6x7xwy73 this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh bosafm 6 i593xis pulled up a hill 6bf x9sa5io3m 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?