99.36: What happens to the inertia of an object when buh5kzc p7:ks8*4j sdits velocity is doubled?

  02.14: An intrinsic property of matter is one t mssrr6;a i2c+hat does not depend on the quantity of matter present. Whisai2s6rr ;m c+ch of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface z- c1pewpomjdn( jisz*b6; ,- of the Earth. Assume the Earth has massdm;- c-p*wjo(b 1 npsz6jeiz , $5.98 \times 10^{24} \; kg$ 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 the Eart 1usf*iypkg6ha e5-wf)3,nw jh. What is the magnitude of the gravitational force acti1* fw w kn-5pajis f6eh,)uyg3ng 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 velocc o lgda21vn,6ity to increase while its acceleration decre noa1 dg26,vclases?

  00.11: A certain particle undergoes *av1tcv96jte erratic motion. At every point in its motion, the direction of t e6vvat1 ct*9jhe particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string heldy/(uvxt5d krxn 9l/2o 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 followin5nktx9l/(r d2x/ vo uyg 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 force constantly zerojvm9d 8n6.-m2jk:q 20yn- vftl1d3q wo yzwbr on the ow mzn .q3 0mf2wb 1yv--n9k :8jlddtjyv62orqbject?

  13.28: An object is in free fall close to the ground. A personhr74)efy ,2ogou d-h i22afor intervenes and slows the object uhaudri22o-f2 h goo ,f4r)7eyniformly 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 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 threeiuf:gz 0-n- h yv+xoc2 forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on --g:fchzv i+y0 oxu2n it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a forc8i-m+ y+z hh+e 82isbdnenmy1e of 10 newtons can be combine to form a resultant with a magnitude of which of the followii s-h hymn b+i e8y+enzd1+m28ng

  10.06: Which of the following statements is most closely assochvu jfiysnb))v -sl*o49a/ttk 1pw.ag-h 9) riated with Newton’s Third Law of Mot n*t9v) .u)s b-)r gi9fyhh p-jwaaol 1/kv4stion?

  95.06: The reaction force does not cancel thx;mi.d e3tvhoejhy4n38)z4o d5,m rw e action force because:

  14.14: A box rests on the floor of an 5,vbsrsq.f u8 u*ih;h+ yvjn.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 acting on the box v;.yushs. *njr,hvibuq+ 8f5by the Earth?

  15.15: A skydiver falls downward thro5: clqb7:jjkdt* j3t sugh the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the f7*tqbc3sl:t jdjj5 k:all?

  06.08: A baseball is thrown by a pitcher with a speed ofdrc4s 03,,bttfkx-r bsa+2z e 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bat iz3r-0t cb, efxrsatkb2 s,+ d4s always

  11.13: A physics book ji56;mvmotg; sits at rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the New;io v6mmgt5j; ton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students inglak8g vd m)wf3 f6cq6::t-j1h d+ikj a Physics 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 ti 6h d w :)g+tk3jmff6qvd:1l8gaj-kche students make?

  99.03: If the net force on an object were doubsmq:l lr*zh- *led while at the same time the mass of the object was halved,then the acceleration of thrh*qzl ml*s-:e object is

  96.15: A car whose mass is 1500 kg is accelerated uniformrn;*gfn* ba6zqum y7 n7w8 q6tly from rest to a speed of 20 m/s in 10s. The magnitude oyf gaznqm 7;n*6t6rqw87 b u*nf the net force accelerating the car is:

  99.05: A tractor-trailer truck is trav//p -zy hxniy, vx:*taeling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelera :h xyp/vaxni,-*/ytztes forward, the force that the trailer applies on the tractor is

  99.16: Which of the followingry-h :o7;tkxl principles best explains why large tractor-trailer trucks ge:ok;l tyxr h7-nerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws s 8r yet8if*v0:iw,cua 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement*iv0 8,8fws:u yicre t describes the subsequent motion?

  00.13: An object near the sur((ai it9gao :*9xtx qz9gs9zmface of the earth with a weight of 100 newtons is accelerated att9oxt*simx 9 gzaa9i 9((gqz: $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acmx. xvfk3*j1aur+0 ikcelerated from rest by a constant force * ukaix+k.frxm3 10jvof 2400 N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizonz/bqqsg- a 1k+tal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far doesskz1 bg+/-aqq the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rough horizo*u: str7k++ty: h 0otfcgd1iuntal floor before coming to rest. The coefficient of +1ygfi+kdts t*c ruo0: 7th:ufriction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a2ztn(3 l -zhsk person pushes directly to the right on the box with a force of 60N. The coeffilz3zn 2t hk-s(cient 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 unijqwflxiiq.rte65, lg 1+- j0vformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the sl0wgjq+ivi 1 t6-5 jrq,lex.lfide. 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 wit1j , rsi0lf)sjh its brakes locked. It t j), 1ssr0jilfhen 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 of ice at a spekoml.t392f v ted v with its brakes locked. It then hits dry pavement and skids to a stop in a distancedvl2.m o3tftk9 . 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 brakhk7a2xx-hk q 9u-4c;ft i +tnfes and skidding to a stop. How far would the car have skidde7t-2ficfh a ;kqu+ tnk4-hx9x d if it had been traveling twice as fast?

  99.39: The driver of an automobile must canqci : c3nul4*,:no fyrefully control each of the following devices. Which of these devices can cause an accelerat:nq3y n:nf*i,cl 4cu oion 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 newto v0i4hjtumrn 22-3 cphns is 24000 newtons. About how much thnmh2r2 0v43pt-c ui jime 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 floowh w).r2 xdcbrpwl*1 44e 76icwf 6r:4oehcgar. 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 rr wde4o7 ) xl4cpfiwc.w16ra:cbh6h2e* wg4 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 coaste7 zdrxhh5 l7d6ad39ddr tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionle5hd7h 9a7ddl d36xrzd ssly 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 roo(r j;t-c;4cv;fwbdj ller coaster tracks of equal length. Assume that on all tracks the db rf w-j;; ;(vctcj4oroller 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly along the curved trac:prf54c zw)t +w;g bmjk from point A to point C under the influence of gravity. What would befzmt+cr5w) jb:pw 4g; the direction of the cart's acceleration at point

  02.40: A box with a mass of 5 d24iq lvi4/ z,i9i-iv/dkaj m0 kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of jliq4- z4d9v, k2iidm iiav// 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 byg2s )o3mko7 pl5 px-4b6vvgci 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 vclpk)3g6sv b ox-o5i7 42mgpthe friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower acu c1l t+u ,1duf ex cxa+l4 p3-vs*2sgvh5,lbeross a horizontal patch of grass with a constant speed by applying a force P. The arrows infx5xb1e ,g +4ul2stdc*u-h val1esv,+p3lcu 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 crate on a table. Neither is moving. Which of 6sty +svr2e-ythe following statements concerning- st2vey+ry6 s this situation is CORRECT?

  06.15: A crate of toys remains at res 1zq1jib b06w*f 4yncxt on 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 speedibzxn1fw4 b60jq*y1 cup the hill?