99.36: What happens to the ine( : o-68xdo9m)e:k l xtinvmavrtia of an object when its velocity is doubled?

  02.14: An intrinsic proo8+tou 44l3v4j s s(tny(zv-bq,inznperty of matter is one that does not depend on the quantity of matter present. Which ofzz 3 s-ni u(on448+n,q4v lyvbt (stjo the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earsopoc -8.l5ie h; qn-lth. Assume the Earth has m8q-o. los-;i5 pn lcehass $5.98 \times 10^{24} \; kg$ 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 fc;/lbtb,svc5zj ::jkl l;o, the Earth. What is the magnitude of the gravitational force acting on the earth bysolz:5j:;/jlcb ;,vfcl k ,t b the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while z*e3/m1j*fyq.jposcf8w rz*/ gj r,bits acceleration 1jyjs3 p,8jf. w*z*bc e //grfmzoqr*decreases?

  00.11: A certain particle undergoes erratic m y1u/zvgt)4+3h8k2k;emw )r ggc fpixotion. At every point in its motion, the directionft/1rgi) 3 g4vzxyk)mwguke pc; + h28 of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at tx,k*;kx2 cny8+paz+y1 em cwr6,ssq yhe end of a string held by a person. The person pulls on the string uniformly accelerating the block upward , ya k*kr2cqs+px snxe+mzy, ;yc681wfor 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 fo8k 9n w/kvgwz+llowing situations is the net force constantly zero on the object?9vwnwk/g8 z+k

  13.28: An object is in free fall clol 7mpk13 vk)orse 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 personkpr)om1 3v7l k? 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, F2 off0 ismg t a+6 -t*(le 0lr.0fogmzjb1s 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ogr*06i bjg1f-eo+tas.lm mtf( s0lz 0 fF1 and F2 is

  01.07: A force of 6 Newtons and a forcexeiuhu sj6n)vaj1zry wz /6-38bgy72 of 10 newtons can be combine to form a resultant with a magnitude of which of thh8s v ein 6-/uzzgy7jy16r2)aw u3 bjxe following

  10.06: Which of the following stato-z 6 /wd+xw*dbn-el uements is most closely associated with Newton’e-/ 6*wo xbdwdzu-l+ ns Third Law of Motion?

  95.06: The reaction forcpt2qt3ke c44:,d xr xt3m:xele does not cancel the action force because:

  14.14: A box rests on the flc+q pi0ttx)v kp61kj)k*,l q roor 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 acti*6 tkc tk1+pr ,)qj)kpi0l xqvng on the box by the Earth?

  15.15: A skydiver falls downward through the air with :t3r f8po (lw ;vqai9s0xkf/yconstant speed. Which one of the following choices correctly describes the New3als 9v0foqrw k p(:i;8ty/ xfton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35-udxr9n5o u- x m/s. The batterswings and uu9ndx--5ro xhits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. tq)b7.n evo* v0xdlm/ On top of the book is a calculator, also at rest. Which one of the following ve.bqmtdv0) n/ ox*7 lchoices 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 f bdgcl);+8zb(sxqm kfc -lpfos9 ,10in 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 cx+1b9f 0(qzl, s;8 lpsfd gmbcokc f)-onclusions can the students make?

  99.03: If the net force on an objed2 :yugfzbkh -p1:f9yct were doubled while at the same time the mass of the object was halved,then the accf- hb y1 d9:fugk:zpy2eleration of the object is

  96.15: A car whose mass is 1500 kg(n+)ttu.qp*1ol k lum is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the c+.tlluukptm o)n 1*q(ar is:

  99.05: A tractor-trailer truck is traveling down the roaaeb.1hly:jobd*. )p7l g fw9wd. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tr7 jh9yabwe fgw *:.olp1bd.)lactor is

  99.16: Which of the following principles best explain 1p6)c;peo vdhs why large tractor-trailer trucks gene; h6po dc)1pverally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram sit* 5r(fwf1nj 90c sugkater at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which sta95wsu1*(cf0rtfj i n gtement describes the subsequent motion?

  00.13: An object near p*wi )6llj v3lthe surface of the earth with a weight of 100 newtons is accelerated at 6j*lipv)l3lw $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accel so6 4gyj +koz52*nctp3i-w grerated from rest by a constant force of 2400 N. What is the4o 6*g5ps jyz-gr + o3ki2cntw speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial svjss)+-b;u7ndoo 8 rupeed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional fors7u)-u+8roosnb dj v;ce 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 r 4 +pb x.6tqysj4wb+eyough horizontal floor before coming to rest. j4webpx+ yty.+4q s6bThe coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizoreqethi +36 q;ntal surface while a person pushes directly to the right on the box with a force o3eq rhti+;q6ef 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 accelerates uniformly to rest on a hori1s sz:lv,c r.qzontal surface. The block travels a distance of,.1q src: zvsl 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 a zhx,xc kyh1-zo wk,9*cross a patch of ice at a speed v with its brakes locked. It then hits dry x* yhz,9w,khz -kx 1copavement 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 patchkyt1y1un*hd4row0qh 21m y .flg q1k+ 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 k nwy4.q*fko1rth 2l1 g1y0qhmduy +1kinetic 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 b4a)*4xbj(6 7 ec7mhe rdeq dcey slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had bq (hcd4drxm)e7c e 7a4*b ej6eeen traveling twice as fast?

  99.39: The driver of an automqvc3hc99 vfl;obile must carefully control each of the following devices. Which ol9;v9cvqf ch 3f 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 newtoo-7/zpp8q6kt s m)zqzns is 24000 newtons. About how much time is needed to increase the romo-8) t kqpzsq/z76zpcket ’ 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 floo 5a3.7-f r(s dgjsxppor. 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 friction f and the box accelerates to the right, rank the sizes of these three forces ex-(s35f7 saodrj p .xgperted on the box.

  02.27: The diagram below shows three roller coaster tracks o*gw4zf2 vae +wf equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the trwvwe2 4az*f g+acks 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 rolpe*om 1/muvjw sz593y ler coaster tracks of equal length. Assume that on all tracks the roller u5/9vomsz w y3pj*1emcoaster 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 cartrollco+ul twpr74 w.mhndg 12nedd3:d :3ds 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 acceleration aedd .cd 3:lw2opm wtdn7urd34g n:h1+t point

  02.40: A box with a mass of 50 kg is dragged across tul0jqhjd-vjcvr75) l fo/3w0 he floor by a rope which makes an angle of 300 with the hor uj lw00lvoq5h/c-f7rv )jd3j izontal. 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 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 *: pkwsrwa8 (mfyp5 -eiu)h)finitially 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 friction acting on the block after a time of 1 secondr - m8yefpku(w hafp)):i w*5s?

  05.10: A homeowner pushes a lawn mower across a horizxa85va nzci2bt*70pa qqf,f7ontal patch of grass with a constant speed bya*v5f0ap8c2 7qn,baq7xzt fi 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 agaoni -. 6nzmq zrz+g:r7inst a crate on a table. Neither is moving. Which of the following statements concerning this situation 7m6rgizn+oz-:r zqn. is CORRECT?

  06.15: A crate of toysbgn uk) z pp.m5z6.jub+r,r 8zapv*7 h remains 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.7 p.a 5p gmrn vzrbu,jbh)p6+zu.kz* 8 What force is responsible for the crate’s increase in speedup the hill?