99.36: What happens to the inertia5x2aymd;3q x2uv qj b /lld3xbmp3e +3 of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does r( a/ 7a4syit 1dv:pfwt27kjc not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic propertyar csw/ 2j1ypi 7t7:fv(dkat4?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assgvd ud /dipxil* s+2-ubj 1czz*n*9 5vume the Earth has m *5/9 xsgd 21 uzzvj+cdiv-l*du*inbpass $5.98 \times 10^{24} \; kg$ 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 fa/ifjwb 26vjy5 ono( z*ll near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth masswjn(ybjizv f5 */o62o is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s veoa+4ueat fhk4+ 8xei( locity to increase while its acceleration decreasee+f8k+hoau( 4tex 4a is?

  00.11: A certain particle undergoes erratic motion.c: ;-qzuicl:i At every point in its motion, the direcil -::i; ccqzution of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end,sm2nlg t/ 6w ql): o+ega4ycr-bzkb5 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 Law pair force to the force of the string on the brnyew ot4 qgm6 kg)as - 2+zl/5lbbc,:lock?

  07.18: In which one of the following situations is the net fib exudn6ikyid *34(8orce constantly zero on the objei*3 e iy xu6(ibd84dnkct?

  13.28: An object is in free fall close to the ground. A person intervet/0o5l8n9 e5wb hbd gu*5onb*2s ct iunes and slows the object uniformly to rest. Which one of the following statements must be true about the ma*b 50obuw nd2/ogut8hs 5neict5*lb 9gnitude 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 vc c);10rh* fh yaas;lforces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The mah ; rfv1c;y)0cl *hsaagnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and kzz rqbfi. +2 ;x*h;t+jcu yb3a force of 10 newtons can be combine to form a resultant with zfhx b2bju;;cr+.+3kt qy*i za magnitude of which of the following

  10.06: Which of the following statements is most closely associated wirxqp(qf+7lm c(o 5x+e th Newton’s +f(5emro qlq 7xp( x+cThird Law of Motion?

  95.06: The reaction force does not cancel the actixuj+kgy /c jrfd 6ge/,g5w 37ion force because:

  14.14: A box rests on the floor oi)yj,6 fr;) bb dwcwjov/b13 6w5gum ol4i-nz f an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third g1zfn; 3/vdo)ym46uco )b6w, -wb 5ilir wbjj 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 speed. nb.*ut7hsj8r - 6: zzdtcuo 7a Which one of the following choices correcto tu .z*7u:68a7bs -chdrz jtnly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball isf,krujajqb:a d/8 5-c thrown by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force thab-jcra q/k:8djf5ua , t the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the u* h ox 95g *c,8g4icekfk5yp1thsio9book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the t9oy f8h4o5 9*t*cghi1 xikc,gku 5espable exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an experiment 4,uc(5ry ; jgrmzhnp +related to Newton's Second Law. The collected data were displayed on the5+pz ugc mnryh,(4j; r 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 mazb*tra )a z 8u0n:(umiss oa: 8 zbnri*az0m)(uutf the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from r8f-lihtzgrk6 so )/+ eest to a speed of 20 m/s in 10s. The magnitudeeks)8 t rzhoi6l+/g -f of the net force accelerating the car is:

  99.05: A tractor-trailer truck is nt+tbiyht7 it b 65l4.traveling down the road. The mass of the trailer is 4 times the mass of the tractor. Itl 7nitt65 ih.bbyt 4+f the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-tra/rwtfg; / yz,yiler trucksgf,/yw t zyr/; generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a:q6+tzi* 6dabc d.be t1v(twd 2 kilogram ball, givqdacbt1tw6:v+6etd* .d izb(ing the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near th+2lct y/0 panu v4ls3ie surface of the earth with a weight of 100 newtons is acv0n pi yu /+ts2la34lccelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose malwjh2 8r.(je ess is 1200 kg is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after jw(e8. lh2jer beginning?

  98.32: A 3.0-kg block wiqrmtid3davdv77-gcu.+mef 4, sg wn v58z) +zth initial speed 4.0 m/s slides across a rough horizontal 7di+ eg zgfd 5r3-m)vz .4s+,vanqmdu7vtcw8floor before coming to rest. The frictional 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 m acro:gcjo /c) 3q,rup+ x*9rlycc8ool.s dss a rough horizontal floor before coming to rest. The coefficie,cp. lcrsd*) q9 3oocrl :+xcj g/8uoynt of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surfaceo:ly n 6vho.8c h,t5do while a person pushes directly to the right on the box with a force of 60N. The coefy86 5 :.hlhvo,ootndcficient 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 initiallynw ;gr1 sheuw* /nur6: moving at 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the fs;gw wnr* enuhur1/6: ollowing 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 np.chjtf(r y( n vhwz)lcyo-9 ,mx/ 88its 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 isj (,cn hw txmr8.hvny(pl-y fo8) 9c/z 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 bra0u;ock0- fez/d qok7t kes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tirese/u70 o t kd-qko0;cfz 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 car'yfsast,t 9kow c52576 owln 4.co9tjws brakes and skidding to a stop. How far would the car have skidded if it had been trway9jso7s 5 wtow.cft564lcto,2 9n k aveling twice as fast?

  99.39: The driver of an sjpzp+2.c t4qhmr .:uautomobile must carefully control each of the following devices. Which of these devices can cause an acceleration in a moving car?2r.mu 4 ppq.cjht:+sz
(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 newtonl )s53alqw:m czec 6i(s. About how much time is needed to increas i(:lac6zscmwle3)q 5 e 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 called Ted xr ))5oqx4ml bs7v7sc8x mla92u cj f7exerts 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 7xvcb7smf j))9ql5sx7cl8 4rm xua2 osizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal length.v)roy db5co / lm4:ls, Assume that /cl,olbd): sor4y5vmon all tracks the roller coaster 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 be traveling the fastest at the finish?

  02.28: The diagram below shows thr4o xi(45kyqbju1gm* e at zm*h52i.gkee 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 ove*oxy4aeiimbz h m5 t2q51k 4* ju(g.gkr 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 frictionlex4j,/zq o1r pakta9zp-lg ,x 4ssly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart'kz qaj p91axlg/ox,4 pz r-t4,s acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the.b1 tjj)d.skc floor by a rope which makes an angdj .cj)bt1ks.le 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 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 pushed aga1d 6s-ewnox c5vn)) zpinst 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 secosc 15)p -n6donv)xweznd?

  05.10: A homeowner pushes a z(x:sct d9 4djlawn mower across 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 various forces on the lawn mower. Which of the following relations among the various force magnitudes:z9s4cx td(j d, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which of thmon ar/(ld:37qxq iu/e following sqdluamoqr ( nx3:/i 7/tatements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleisu kc,( 9)ajasxmg 9q2gh as the sleigh is pulled up a hill with an in9g,s)ukj csqm(x 92aacreasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?