99.36: What happens to the3ialp+y4 :kss inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does notyi ss*y--p-z*k ( shx9gtyts( depend on the quantity of matteps *s zyyktx-(*sh9is--gy(t r present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg bouldery )by/*qgo5 4wwkaa0c rests on the surface of the Earth. Assume the Earth has mas4 kya)0a5bw/o*ycgw qs $5.98 \times 10^{24} \; kg$ 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 zg qtgbl/ 01h3ve,)vh free fall near the surface of the Earth. What is the magnitude of the gravitational forc/ gq1)hgbehz3 ,vlt0ve 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 velocitf 2v1 +igsrnvi 2 av9 e./.b agqxqixn:r;8un)y to increase while its acceleratio) 8s /2ie.vni ruiv19 xfr.nvg:;qb g+aqaxn2n decreases?

  00.11: A certain particle undergoes e1p d 8;ahyjs2 w9+xemhrratic motion. At every point in its motion, the x82d1w hy j mpae+9sh;direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a gwoyj) /eie:od.;. lpstring 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 :e) . edlijpo.w;ygo/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 uc iwc)k)tz-)zero )uk)tczc- iw)on the object?

  13.28: An object is in free fall close to the ground.yl:r u9c e4;xe 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 person? The magnitude of the object’s acceleration is a and the magnitude of the accel9ul;rxcee4:y eration from gravity is g.

  98.03: An object in equ1am g60oe l/kdy obj l7a;3f,milibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 l0d/ae6kym 7 m;bg 3o1f,jaoland F2 is

  01.07: A force of 6 Newt;,s ,ot3clf dwons and a force of 10 newtons can be combine to form a resultant with a magnitude of which of the followinsw, 3l,t fodc;g

  10.06: Which of the fkid pz9bw f8r7) 4bk;following statements is most closely associated with Newton’s Third Law of8rdf9zb;kb f 74)kwpi Motion?

  95.06: The reaction force does not cancel t07k c /bm((y:sdebdm bhe action force because:

  14.14: A box rests on the floor of an elevator. The elevator is acceleratimepiau*.x ( 5vng upward. Which one of the following choices*.pvau (exm5 i best represents the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through thrqsb 2 wg3(stt a*s/p;e air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force tapqg b3st (2 wtr;*/sso the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. The batterspct; 3 ie4c*r4tpk w8ywings and hitsy4e43 t p*8ricp;cktw 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. On top of the book is a calculapo07yym 2a/b xu3z8 wgtor, also at rest. Which one of the following choicesbga mypy3 7w8ox0/ z2u 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 in lab conducting an experiment rez8;9)mn gkq xl/kbp gu0r3g5s lated to Newton's Second Law. The collected data were displayed on the graph at the right. From t lbr )ggz8nug/p;mkqk0s935x his graph, what conclusions can the students make?

  99.03: If the net force on an object wen7 .+bc4 6rxwv/3mt x u0acslhre doubled while at the same time the mass of the object was halved,then the acc+uw3n7l/h6 x cbm 4rt c.sx0aveleration of the object is

  96.15: A car whose mass is 1500 kg is 6k nq) nkjzb13accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnit3)1nk zjk bn6qude of the net force accelerating the car is:

  99.05: A tractor-trailer ,9i8 dffr(qs t+bo6s2x /qtmvtruck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tracts,osm q/qb2(+iv fd 9xr8tt6for accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principlesad cpt69 1l */8gdmgfe best explains why large tractor-trailer trucc/ad*mg g1d96ftpe 8 lks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on dle+ehf281 zrncb3ha+ 7 unx (a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Wh2aebxudn 3 ( ze++rl 18fch7hnich statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weigrds/us 6fw8q 8) xgzjm y+:jd*ht of 100 newtons is accej/qdfjr:)g *+8m6wsdxuz 8 yslerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 v i+ce( bk62+k npd,au+he)clkg is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 hbu2 n l (+6e+i+kkvcadpce,)s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 )8fms-0j he hyq.r i2kv0ts-lm/s slides across a rough horizontal floor before coming to rest. 08. lm0sk2qhhvfiy)- jst e r-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 pr*yj ;cj vrrbevj6g*n 1- ;h,m/s slides 8.0 m across a rough horizontal fl r;6h**rnb1,pyv-crj e; jgjvoor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg boxx tdj(q i+, 2fyk5j)yo remains at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the su ),tq(jo25 yx fjykdi+rface 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 h d 7,wvppuz+1oorizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best repreu wvzp71+pdo ,sents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patchqbj+d 64-jzk,eedbs0 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 kinetic friction between the 4bd z0d kj je,s6e+b-qtires 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 slido 1rdfd2e12zkes across a patch of ice at a speed v with its brakes locked. z 1ded2okfr12It 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 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 bn3am o, v9unkl7)1wcdrakes and skidding to a stop. How far would the car have skidded if it ha,1 k)n9oc wulm3d7anv d been traveling twice as fast?

  99.39: The driver of an automobile mu 80ce fsao5:4 gfpndv*st carefully control each of the following devic8 fo ag*5ve4ndpcf:s0es. Which of 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 nc. a6dzmpg,k k0st:d9ttx/mgo ve276ewtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of t0s6c7da .pv: ,gk6/ oxdtm 2tkez9mgthe Earth at takeoff?

  07.21: A box slides to(k4czthsw:x j,t1 b9a+ v)jdq the right across a 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 the 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 boxc:zw xvjbthk , 9 j4()dq+1tsa.

  02.27: The diagram below shows three roller coaster vy+ 7 i7dh4effunt1p6; g6mfsao2mq0 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 tracks to the fa71s 4ygh ffmndt v e07m6uqi2o;+fp6inish.
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 coastevmy x72f*b2per tracks of equal length. Assume that on all tracks the roller coast* x22ey7 pfmbver 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 txa*iq 8hn6c6 p:--cm.r qovuche curved track from point A to point C under the influence of gravity.qi-pumh*x-cn6c68r. aq co v : What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50f)j 6/jhk ga0b kg is dragged across the floor by a rope which makes an angle o)/a6bjhfg0 kj f 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 qjkrqwq0.3ri+t 6b9c initially 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 frrw.icrqkq69tj+b0 q3 iction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mow5( d;h+aycljo er 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 foll a ld(;+ochy5jowing 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 mo8glpm u*j x6)x*0duhcving. Which of the following statements concerning this situation is xc*xmul dhg*u0p8) 6jCORRECT?

  06.15: A crate of toyil5iwi0vpyw q:n m ;14s remains at rest on a sleigh as the sleigh is pulled up a h5:mn 1yvw;iliwpiq 40 ill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?