99.36: What happens to the inertia of t0q2./jjcu r- .1cj db) uzhzhan object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not de -rt05oe4(bar.me5h f6ujq2 ya jy1gspend on the quantity of matter present. Which of the following properties is NOT jqaju-4y0b e1rf r26mg(h5o 5y at.sean intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the p1qv) ijbfwm0/c8/h; vw1 ipw Earth. Assume the Earth has mass vvp w8fpc)1/;miiwhj 0 q1 wb/ $5.98 \times 10^{24} \; kg$ 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 n ymz+ ikz5x (5-s+zxosear the surface of the Earth. What is the magnitude of the gravitationaz5k+ +zys(oz sxmi-x5l 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 to increase whi .b-/b1y bmbbdle its acceleration decrm/ y.bbb 1dbb-eases?

  00.11: A certain particle undergoes erratic motion. At ever d++ ,hqtd5lzfy point in its motion, the direction of the particle’s mohlq,5 tdz f+d+mentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a person. f 5t+;s*wvb7 sybfszz,h :9 zi:qk5gkThe 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 thei5sv,k*h; ys :9bb wfs5qzz:f7 g +ztk force of the string on the block?

  07.18: In which one of the following situations is the net force constan x-*kz0:/mobrc q ddz)7;iouw tly zero on the / u w:rzzdoq7kob-i *mx;) c0dobject?

  13.28: An object is in free fall close to the groundek; 2po*dfnmb m 2m-c;. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the accelern2dkcbem f2; * mmp;-oation 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, F2 of 50 N, am lgd*j ny*(2 sn0t(vhnd F3 of 70 N, acting on it. The magnitude of the resultanjh2*(v0 y n* s(ltdnmgt ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combp,ym)3k yiz 9xd m-66wkzoau( ine to form a resultant with a magnitude of which of w,ak6p3u mm 9d-z6k)ix(oy zythe following

  10.06: Which of the following statements is most closely assocd l1 ,9xc *7zjpjys1nyiated with Newton’s Third Lawy1*1cxjlsj y7n9 z,p d of Motion?

  95.06: The reaction force d9,r gkbi*ohiy b lo;wxx(,8r:oes not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating upw+haqk 2f), o4v6b m-1tmzhw rdard. Which one of the following choices best represents the Newton’s Third Law pair force to theof md-ma614 vwq)2khhrzt,b+ gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the airg7 4 .i6)iyhgrtcucq 6 with constant speed. Which one of the following c. gci 6)t64hi7ugrqychoices 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 pitcher with a speed of q;5oguvnrm6 ey3 ))s dl3,mmvrwp, c/35 m/s. The batterswi5 d cq,r3mvg,s;3lyr6) mu vmn/)wepongs and hits 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/7a:nb tq-dgo a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair for:/b nagdo-7 qtce to the force that the table exerts on the book?

  05.06: The students in a Physics I z)/uo7rs o5ws5mctb 2class were in lab conducting an experiment related to Newtorwz ss ubc)o2m7/o55tn's Second Law. The collected 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 whilel44n zya5mb (z at the same time the mass of the object was halved,then (4yn b5z4mzal the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerate lu)x9gbx6zv9g8lp 4md uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating mpu9g l xg49blzv8)6x the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the tra-we; qka7, v qj18r:ogza7pqbiler is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applge:o, 1q7w8araq v z- k;j7qbpies on the tractor is

  99.16: Which of the e t44,x9clwngfollowing principles best explains why large tractor-trailer trucks generally accelerate much9xl,gtwn44 ec more slowly that automobiles?

  99.19: A 50 kilogram sk.en58l kg*v eeater at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. n gelv*ee5k8.Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with74-wp dbqmew2 a weight of 100 newtons is accelerated atm2e7 qdww-p4 b $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a coj7b(-o vjk kpny1ry:g-6k y:snstant force of 2400 N. What is the speed of the car 8.0 jkyys-v k( 7rbyj k:1-6pg:nos after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides acro:4kog uvf1ei9 9spqwi 131p vyk*,lglss a rough horizontal floor before coming to rest. The fr4e:1gk*lo y3pkq9 1i uw1pvvs9igl,fictional 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 velon7c;l*q1v.vu fjr 9 ilcity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coeffivril7l;f* .uq1njvc9cient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surf i z/f gp*tnm2rsa84-w0/l awxace while a person pushes directly to the right on the box with a force of 60N. The coefficn 8p/gflzw4xma/t *s-a2iw0r ient 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 resso1 uo7 ; cd622bllmcfwae+p 7t on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which oneo +l ;m27oes2alpb6c wf c7ud1 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 ib b4l:s+ uf0u;al*cm with its brakes locke0:ucl;is*a b bmuf4+ld. 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 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 hkekwz+nh2ac:,s k9hl6h; z; of ice at a speed v with its brakes locked. It then hits dry pavement k h6nksha,w:l k+ ;;9zz 2ehchand 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 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 brawk3( ;oh9t+orpva q,npm s9a 6kes and skidding to a stop. h t9op vs ;m96nrkqw,3a+(pao How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of0ajv+f-iadd) nt )mi2 an automobile must carefully control each of the following devices. Which of th2t0)fd-+aiamiv j) dnese 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 weig2janlgzh z3e :stcw2.771nxk ht of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ spehcj7a.2ng wzl2ts: 7 x3z kn1eed 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 k2we +yx*)2tb k42dr6egp.f wa4epn ra horizontal floor. 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 exwyenfp)g6d2 2bk4* p+ r a trew42.kthe 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 x bau/4 ),q8jnh)qjsw)ug 5wu- awh7aroller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevatio-qaw)h,s 7) j u8a)gah5ww n quu/x4jbn 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 three roller coaster trp z su4u5+rl4*el4abl acks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlel4lr+beu 5s4u*a lz p4ssly 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 rollercoaste1rf *s466re ovaer5zer cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart'sr6aefv6z1r 5eso 4*re acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a ropesc zykt3. vj,8 which makes an angle of 300 with the horizontalyztc8.v,kj3 s. 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 against a wall by nt128wmf).fdcx -xhpx+e k zao1m, 6v a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is tp ,m x+)2 6.1 vwxdcxz8efhfo mtnka1-rue of the friction acting on the block after a time of 1 second?

  05.10: A homeowner puxgavqevx64b/5 ato0f v4a -l5shes a lawn mower across a horizontal patch of grass with a constant speed by applying a force P. The arrow-/a5fx vlgav40avx5to6e q4bs 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 a crat a6i ca9l1m*yfe on a table. Neither is moving. Which of the following statements concerning this sf l9ai 6*1mycaituation is CORRECT?

  06.15: A crate of toys remains at rest on 6 h fdia2tmka;e67;jmkcy : s(a sleigh as the sleigh is pulled up 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 sm6:26m a;(jsdi ;hky a7k etfcpeedup the hill?