99.36: What happens to the inertia of an object when i0tk2hgy* 9tyk ts velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the qu6 9/ a;lkfs2mese:o0grvp:r h antity of matter present. Which of the following properties is NOT an intrinso/ 0 hekvpes g 69r:2rsmf:al;ic property?

  04.16: A 20 kg boulder rests onjruf ru0wy 8)p2 km6j, the surface of the Earth. Assume the Earth has massy 6rj8j0,)r2uump f wk $5.98 \times 10^{24} \; kg$ 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 sumkpdb 32mm bma+ a+//drface of the Earth. What is the magnitude of2 m pb+/+mmadm/bk ad3 the gravitational 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 velo f v3g 3t9zo/gqjy(yd kze1k7,city to increase while its acceleration decrease,(e1d/kvgfz73q ytg yo j93zks?

  00.11: A certain particle undergoes erratic motion. At efih7cd+n2* 5l o.ymra(h2 pk *he/ ofvvery point in its motion, the diropa5om*+ye c f.f*n/i k hlvhh(d22r7ection of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the apqc p+ wbsrt6t),bsbi1 1 gt()ir at the end of a string 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 the Newton’s Third Law pair force to the forcbb+s(t6sw g,btp 1)r)i 1t qpce of the string on the block?

  07.18: In which one of the following situations i:3oq, i;9v, mzysw emes the net force constantly zero on the objec q, 3: mw;zsveme,iy9ot?

  13.28: An object is in free fall close to the;:xajxzp :h3 z ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the zap3;zx:hx :j 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 three forces, F0u1 dx*v.y0yb ;vxo6zy s8rie 1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ov;*y8ieuyd 60xr zo 0x1sv.ybfF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to form y;,bilc c0qm9 a resultant with a magnitude of w q;i 9ybm0l,cchich of the following

  10.06: Which of the following statements is most clos/aqab. s9b8dq jh syg1lpo8 *5ely associated with Newton’s Third Law of.sq1g9 pjay ql/*bodb88 sha5 Motion?

  95.06: The reaction force does not cancel the ya2ohb7 9sw (c.9z (/zp diolcaction force because:

  14.14: A box rests onn/d,igf5yxf2py2 1ha.vq7za the floor of an 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 fgpdy751 2z,q/ain ayvx2fh. on the box by the Earth?

  15.15: A skydiver falls downward throub3)qou4mkm1c .g. gsh gh the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair fog.4.h 3)mcbk 1musgoqrce to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is throxel: l /gc()zwoz- +q c8py1mxwn by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts wl c/8)+1mxzc( zqop-leyg :x on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a c) p653cq zfz0ihe*: ch.um7rg -fesopalculator, also at rest. Which one of the following choices is theshoge05ec r pm-q . f 7ph:z*zcu6if)3 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 com+ja xepvx b 1an+9z(a-:;/ ax t*imxonducting an experiment related to Next*az1x9eaa+i +mv x -ona/ p(x:jb;mwton'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 whggz j3 7nh9d69 yb lh6p)oc;eere doubled while at the same time the mass of the obep)7oz63d ;cn 9gh 9jghy h6blject was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from1d8h9k8 4 xtz3d:c4omcsa knp rest to a speed of 20 m/s in 10s. The magnitude of the net forod kmdc941 z3p8x4kants8 hc:ce accelerating the car is:

  99.05: A tractor-trailer truckle/0q;h hp-vnh:tbl.l 4s qqn k/zk++ is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the kzt/: k-.nl elbhqqhv;4ln 0p/q+hs+trailer applies on the tractor is

  99.16: Which of the following princizb j- rltkq hp372.b*rples best explains why large tractor-trailer trucks generally accelerateb72rzb. t*-rp3kh jq l much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogram xkejor*( z;w:sn6u, b ball,nwj:okr;ebx* uz6 (,s giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near wg0+ t;8wdvs*xn r 9w)pp8u5yy;w6 uj 8dhs tithe surface of the earth with a weight of 100 newtons is accelerw ypi wtds88xsjr w* d6+t09yg8vp ; w5h)uun;ated 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 rest by a cck4jzgt dks,*-c 22z tonstant force of 2400 N.ct c2kds42z-zt *kgj, 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 h .bqvfga o7n7e/t no+(zm(gka8b +v /sorizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far doeo +(n a7te/ zqao7b(sn v/fgb.mgk8v+s 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 horit1m isoh5l8/h7i)8wn orb 4ok zontallr/obnkmhiosh o7 1) 8 5tiw84 floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on age z,8z-:o:h z hb1 jcwz;7dxy 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:-:1;y zc,eb7 hw8ox zgdzhjz 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 topb 3hhvu6c *2zl k,/x3ml5 uk tihdd44 rest on a horizontal surface. The block travels a distance of 12.0 m during xvltk2u,mui h45 p6 4dk3 cb*d3/zhhlthe 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 patc1t ;h*wfhno. th of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. Thw t1h*h f;n.toe 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 speed v with its bjt;.nom1r-zxc a5 (darakes 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 is μ rn(z.1x5caao-m j;d t .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car mabl):c kaa667n+qmx kw9 ify 8akes an emergency stop by slamming on the car's brakes andk6cbyl 76q8:+x9naa )aw ikfm skidding to a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the fobik+lau 2; p3y2nhmb)llowing devices. Which of thesea2mbbp2nh3 k)iy; lu+ 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 ontp1qq*r3jr :t z1 6 f5ohkfd:v a rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speq6rft3*o pjhrf1 qvz1tk:d5 :ed 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 ho:ts ;,jxmc 2 pjy,vm8orizontal 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 tjpsx ot2jvmy ,,:m;8 chere 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 showkp( cb /,s*h*zx5vq vcs three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and movev5bvxp/c,*qh (c *ks zs 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 tracks of equal lengtn s l:(qi ubsyal 3mb8+v:om(1h. Assume that on all tracks the rollnv:i(l(lb:ma oy qum 1b8+ss3er 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 fric s7:udc/zdgz y nt:u;/tionlessly along the curved track from pointd://;sc 7nz ut:duyz g A to point C under the influence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass i;1 u3fu+-fm)pzt fvgof 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 force on the rope is rgtffu 3pi v-uz+mf)1 ;equired 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 wall1j q8(0tr/6fhhvpihl9e;y 9qe: hvyc 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 trh;rlcv: h1q y tjp9y09h( 8he6e/ivfque of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes 18ljxm20:ewnm f rs7oa lawn mower 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 following relations among the various force magnitudes, W, f, N, P is C f0xrm 81:on we27jmlsORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which.fhu9aj*z ,slb te0; y of the following statem,;eu ylta*h9 b0zfs.jents concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a hftwp b:n7z.(sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is p.:tfh(wnzb 7 not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?