99.36: What happens to the inertia of an object whenok (stuj qxp8r8:b4d/ its velocity is doubled?

  02.14: An intrinsic property of matter is one tr:2 j; k7kmkyz1jq0 a::0strlem2ssehat does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsi k70 j2esr:m1k msl:yr:tekjaz2;s0q c property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth has siaqme w,6zk,y4i5lpzq6e .- maw ,l5,pz-6s64imq eeiqa yk z.ss $5.98 \times 10^{24} \; kg$ 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 surfaryn:z5f*p4ct pwh1l,zf o7p )ce of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Eazo5,)lt cpy4f* rz npp1f7h:wrth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velociticdrh5)) /l ,tdxlu,hide i0( y to increase while its acceleration decreasesc)dde5i)hdxi (l0lt, rh,u i /?

  00.11: A certain particle undergoes erratic motion. At every poins,hz a dv*g1tuz+*q;awgj )m6t in its motion, the direction of the particle’s 1 * )+zt6gv asahwd,g*uzq;mj momentum is ALWAYS

  17.14: A block is suspended in the air at the end of8ia;v 6+6gtt e0xqv)jjrz6 gb a string held by a person. The person pulls on the string uniformly accelerating the block upward for a short timev60eq8 aj6 tzbr;)g6j+v g xit. 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 u;ane,phda *1j d9f*s situations is the net force constantly zero on the object?a*1jf eddua;9hp*s, n

  13.28: An object is in free fall close to the gro u v:si)m1fx ytek8.6hund. 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 byx e6i .8:tsfh1umk )vy 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 30z yr 6b8zjv7a7ta6 jk2 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 jzkjv 27t 668 zba7yarand F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to form a en9)fiz ld: ,dd :2hwsresultant with a magndd:i:d9fl 2) e,nw zhsitude of which of the following

  10.06: Which of the followia(6igz(* cuc q0r f3lnng statements is most closely associated with Newton’s Third Lawn qgac(u(f 60*3iclrz of Motion?

  95.06: The reaction force does not cancel the actio/ z l7:mmois4zeculltn4 k,;) n force because:

  14.14: A box rests on the floor of an elev ;qeoef* )yi)mator. 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 by the Eartem) q;i)yf oe*h?

  15.15: A skydiver falls downward through th /+j. us5uv4a gtymcwh mq45r1e air with constant speed. Which one c j v/ us tuq4rw51gmh.5+4ymaof the following 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 tho 8-)p .x b,lsd,y.vojysk+pzrown by a pitcher with a speed of 35 m/s. The batterswings and h.ydlbpoz8 ps xov ,,)-+sykj .its 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. O bemj1f0;6/ld xeknb) n top of the book 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 table exerts on/) n demf;b xjl1kb0e6 the book?

  05.06: The students in a Physics I class werwjxz 6 8,h)yare 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 taj),z w6yx8hrhe students make?

  99.03: If the net for-bek0(0 earhkce on an object were doubled while at the same time the mass of the object was halved,then the acceleration(k k- bhear0e0 of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from k6xeb9,oum v+rest to a speed of 20 mo,+u vkb mxe96/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is travelib, vj(imoto*)ng down the road. The mass of the trailer is 4 times the maiboovmj,t *)( ss of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best expw vhi *fzd9f)1*.tvaq lains why large tractor-trailer trucks generally accelerate much more slowly that aut qvfz h*id1vfa*9.w)tomobiles?

  99.19: A 50 kilogram skater at rest on a fricf1o1jq d y0ubt )i98srtionless rink throws a 2 kilogram ball, giving the ball a velocity of 1 8d1 r09oy)jqft1 bisu0.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with fs*81ewebhb 1 ar2b)x a weight of 100 newtons is accelerated aweb8e sxhr a12*b1)b ft $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1xe v6j9gxuwe 9ewd(4m/ p dqv:*fv e4(200 kg is accelerated from rest by a constant force of 2400 N. What is the speu9e wx(ev9 *j e(v4ed:4/fp vwmxd6gqed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across amf-m*id+;e s,;quz f y5jd gz: rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far d ,e;+*d:5i;fm m-dzfjgzqyu soes the block slide before coming to rest?

  95.38: A block with initial velocitik2mr s4 7qpj5y 4.0 m/s slides 8.0 m across a rough horizontal floor before coming tos kr 47pqmij25 rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a qkoimik2./n: person pushes:2 i q.nmi/kok directly to the right on the box with a force of 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 acceler* gepw)2 eryn,l k7f: 3fp1sdvates uniformly to rest on a horizontal surf r:n v7f3g2dwpk),felyep s*1ace. The block travels a distance of 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 )q j h;wn1n9mbm slides across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficientj n wnb)q;9h1m 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 a4 5-xu c6lhnr cj(k/rk speed v with its brakes locked. It then hits dry pavement and skids to l5c r-k xuck 4jh/(nr6a 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 a6z9ft+zbqbc4h )9mktbon7 yijsd9; 2n emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice as9nqi+96fbzkjsc9)7 ohy dbz;t 2b 4 mt fast?

  99.39: The driver of an augxvv gm++u7oy1op k3)mq78 qh 7wy:ewtomobile must carefully control each of the following devices. Which of these devices can cause an 7wvq uwy7yp x7+evmo8kh:+go 3 )gq m1acceleration 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 2406t(, 7mb ..e1yzx/civl rqzra00 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth .z(1q.ac6l vbtrmx 7z/eyir, at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person called T-l em zu2j).wged 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 acceleraeg-l2.zuw mj )tes to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram belowv /9bd jvvbf0aye:(9 e shows three 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 over the track9v d(be9 :vfaejbvy0/ s 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 tn:9(pdzfuzp kp o hb) +tm4q;b oz;p.8hree roller coaster tracks of equal length. Assume that onz ;k p+bno;uqm.d8:4op bf)( t9phpzz 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly along the curvedmj+-*p(smqm(o 0y o f jcclu.9 track from point A to point C under the influence of gravity. What would be the direction of the cart's accelerati -oocpu sf(lmj9.+j ym*mc(q0on at point

  02.40: A box with a mass of 50 kg is dragged a5ks5 +kkl o4fgcross the floor by a rope which makes an angle of 300 with the horizonoksk+g5f4k5 l tal. 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 -+wfprnak*tv e 9;,ii wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 whr 9kiw ev,-i*p nt;+faile the coefficient of static friction is 0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower acrotdgtwd4 :( 4l0q 4:jt+r wnyoqss 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 force:dq q(w4t44d+lr y : jngo0wtts 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. Nek k: y(0.minhr0b.+ja1qic p sither is moving. Which of the .k0 pci(y.qai:rh jm s+nb0k1 following statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh ih8 q7sae)(gqi:ehetv ip 3,3us pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the v8ee7pq i h(t3e,s:qua g)3hicrate’s increase in speedup the hill?