99.36: What happens to the inertia of an object when its velocity is ww5 *l6x fqge3doubled?

  02.14: An intrinsic property of mattex/d ,- usykuj z+pha*8r is one that does not depend on the quantity ofjxau *yu-z8sp kd /h,+ matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder zivkb r +7qcijqdup2 6c8y.:hev ., +prests on the surface of the Earth. Assume the Earth has masq c +cib8d7,.:rkyiqujpv2.6vz+ ephs $5.98 \times 10^{24} \; kg$ 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 spher u-ti 9g440 xyko74ckd v iwsu*p)/vkze is in free fall near the surface of the Earth. What is the magnitude of the gravitational force actincv7 o*vy9wt-0gz i 4 suk x)4ku/pki4dg 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 while its fb* 7q ,kcm+gq(jr h-gcc:11y/pavdwi 0d/jr acceleration dejcmr* ( q1 v:af diwggjcqyk/,-1/dhprcb+70creases?

  00.11: A certain particl* x:g wtxowl/0m5z/gxe undergoes erratic motion. At every point in its motion, the direction of the particle’s momentum is ALWAYSg 5tgow/m/x*xl :wxz0

  17.14: A block is suspended in the air at the end of a string held by an)/ 3 fvh:f+vtgd1e jr person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which onr /ghev: )1d3fvj+ntfe 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 situations is the net forpecb qt:xd h p94i9x5 r ,ey1ww4i0u4pce constantly zero on t4 c4504i p9he9ruey w xpwiqx,pbt :d1he object?

  13.28: An object is in free fall close to the ground. A person intervenes1*fei)i o59k: vevsli b t,wn2 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 tf,ont:k9ve) w v5si* 2bl eii1he magnitude of the acceleration from gravity is g.

  98.03: An object in equilibriuq,60cx 6pzfrv m has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it,6v rqz6x pcf0. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newt( 0im3ua)ehabk-7i.u,1kg u n+lf bkdons can be combine to form a resultau e n l1dbi-g+7(0uu3k mhkfb.a,)ika nt with a magnitude of which of the following

  10.06: Which of the following statements is most clolea nk:4 h)zoc (/---gewg sfnsely associated with Newton’s Thir-zke)(lsf/h- ng w-g :4 cnaoed Law of Motion?

  95.06: The reaction force does not cancel the action force ,a/lp bk;q8 2 o(rg-0vwdktpt because:

  14.14: A box rests on the floor of an elevator. The elevator pw(bv jp eqhv: d;t-.gu/ g4q6is 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 Earth/ (jp .vv; 6gqptg4we:db uh-q?

  15.15: A skydiver falls downward through the air with ccg 3wlgmq0/p: onstant speed. Which one of the following choices correctly describelq cg/ :3wpgm0s 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 w:lgp3va+5 yu uith a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the vugpl 3 a+5uy: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 .olaa b7; epzqjc,;+cbhab27a calculator,cc a z ;7bja. +7boa2qeh,bpl; 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 the book?

  05.06: The students in a Physicsn2.ezv9n(9)tl/m c3 uiqvjg 0 yztr0u I class were in lab conducting an experiment related to Newton's Second Law. The col(u tz2nuj/r g 9 c.0z mve3vyin0t9l)qlected 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 objeqtminj71;+ m sct were doubled while at the same time the mass of the object was halved,then the acceleration of the objnm1;i tj q+m7sect is

  96.15: A car whose mass is 1500 kg is accelerated unifvu/ hn3 dhtl;z0s -a,formly from rest to a speed of 20 m/s in 10s. The md-nhat f; l, uzsv/0h3agnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the roa 3eaj3n5tl3cf,6hoog d. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerag6oa5hl t e3,j cn33oftes forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large fg56 l e,a8zw:j0zopvy /j -vktractor-trailer trucks govj 8jg6y/a0zv,: wfzl5-k peenerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogram yg,3 gx0n4oz fball, giving the baxofz n0,y3gg4ll a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weigp.d ; rg e/ha8;3rkrkfht of 100 newtons is acceler k;;8hkfae .3rr /drgpated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rexvjfi e52ln-7st by a constant force of 2400 N. What is the speed of the car 8- fl5i je7v2nx.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides acroszgl7w,v4tnr(z w d 5 9wb6pv3.dzis- us a rough horizontal floor before c4t7-b 6, ud(givzws3v5r w .ln pdw9zzoming 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 across a rough ha1q bem)j/.y s,+ q 1adruydh+orizontal flosdrdm.qheu)j,a/ y+ a+q 1by1or before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on az/w 21q cmdf5 c4xq6uq horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction betweenc1m qf/w4cq6z2q5 ud x 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 uwzm (,l:f o-fm ** p wdq1kne(ab/hc.vniformly to rest on a horizontal surface,*(lfaw-h vzpom: . q*/ mce1bf(dnwk. 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 m slides across a patch of ice df382hlll3 zxp n39snat 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 betxd9s3hl3l38fnn p2 zlween 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 am:(a c7 :lh sk8.rwgxi 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 coefficient of kinetic friction between the tires and the dry road .8:r(lxk :gi awcs m7his 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 ba ..c)42jmpqvvcac /ey slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice as fast?c cce2)vav4..mqjpa /

  99.39: The driver of an automobile must carefully control each of t7l0sdmtliwp y4tn)mgq i4e0s** (.bwhe following devices. Which of these devices can cause an acceler let*tsid40ly n( qsm 0*4wbpm)wgi.7 ation 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 24000 a6yc9 fuzf hy;i ti:.0newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface o;hyaf: 09zf.i iytc6uf the Earth at takeoff?

  07.21: A box slides to ttg 3t8 /z(t2yuhu/denhe right across a horizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts y t(t /d3uz/teu8gn2h 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 box.

  02.27: The diagram below shows three roller coaster tracks of equal lengt(o g9v:w+e 3/jtl sjxch. Assume that on all tracks the roller coaster carts start frojg( o9+lwst3v j/cx:e m 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 three roller coastye8dc(hqr s65cfsj,yj2 rt eh6h+g2 +er 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+tf +gr2r,sc6 2d(h5yq y68 ehjscehj 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 rollercoa4.2 fsh 1xocawster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of2ow 1hfaxc4s . the cart's acceleration at point

  02.40: A box with a mass ow h3 gpu()es z3+ce9vtf 50 kg is dragged across the floor by a rope which makes an angle 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 gw3 h+ c9)t3uee(z vspforce 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 agp+51l5mliga +pm(m) 0on yqby a 100 N force as shown. Thecoefficient of kinetic fricti1l(y5)0p5p a a+qg+mommgnil on 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 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass withq,gmo6pf h :2e a constant speed by applying a force P. The arrows in the diagram correctly indicate the directions b qf 6gpmho2,e:ut 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. Whq,xfpl 62;cw n4toq7zlhkh 53t;5wbmich of the following statements conc2n p, l6xk wq4 z3;thfmclqb5o ;h7t5werning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleip c c/yb.k1z5pgh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened dowyzp c /5.1cpkbn to the sleigh. What force is responsible for the crate’s increase in speedup the hill?