99.36: What happens to the inertia of an object w5s:u.m- b niss(wkm * drniv04hen its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the q 42vqi l3mlr8tuantity of matter present. Which of the following l3t4 m2qilr8 vproperties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the En;p 7ebk9v1gn *;jo nlarth. Assume the Earth has massv;knoplbg;en9 j7 1* n $5.98 \times 10^{24} \; kg$ 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 th;a7 swurglj x, 4oml5 aw*e(+le surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth mass ue*(rg o ,aj4w;5wls+xalm7lis $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s vl;b:fv8p baq*2exehr-s3/e, qzmn i:elocity to increase while its acceleration decreasesr2h,-be naemb*iqepz:vs / f ;: 8xql3?

  00.11: A certain particle undergoes erratic motion. At every point indqc 0gd(4r4h kkx.- di its motion, the direction of t4 4kkg.d q(c-xrd0di hhe particle’s momentum is ALWAYS

  17.14: A block is suspended a7u 5.clkmy+ din the air 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. D5. la7mkcud y+uring 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 foznav;r 8 bgv ar.7/8ryllowing situations is the net force constantly zero on t./n ay8g 7vbrz8rav ;rhe object?

  13.28: An object is in free fall close to nb;wcrrvg/t t9 l +-3bf41ys*4kyg zgthe ground. 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 anbv34 kgtz/1c *rf4yy s+glb;t9g -wr and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 Nmggvr96de pw799g1v 7 s gujz/, and F3 of 70 N, acting on it. The magnitude of the resultantg9vzg /s67g9jd9g1wvr 7epu m ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to forh5(w, s0i0wk blnth4f m a resultant with a magnitude of which sk4n00wb(ihh 5lftw,of the following

  10.06: Which of the following statemrv(c fw4d*(,7vzdb4w +xxm+jgjv+oments is most closely associated with Newton’s Third Law of cwod v,xwdbm4+gm*( v f v(+rjjx7+z 4Motion?

  95.06: The reaction force does not cancel the action force becao*d6;m t dapdv,n*sq3use:

  14.14: A box rests o+ zf6w;p4ew b-rvbcb-tt(w 7rn 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 actib6(btwpver; +t f-4r 7-czwwb ng on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. j(enp(,4wf mtj ug7jo:/ gla( Which one of the following choices correctly desm l:jao(,wpg/ te74ufn(j j(g cribes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown co-b. h sr90u(tso:vdby a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude os.su:- o obv hc(90rdtf 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 calco n0cffk o.y9 z(e/br4ulator, also at rest. Which one of the following choices is the Newton’s T o4/f rn kfzbo9ey0(c.hird Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physico dtovo()c:s:s 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 graphood s):c:otv (, what conclusions can the students make?

  99.03: If the net force on an object were doubled.53steit-fi 5g) )tpvr:*mpqq y ) dff while at the same time the mass of the object was halved,then the acceleration of the object ir5 s)t:g iv)q p)d*fq.ty5fe -3 ptifms

  96.15: A car whose mass is 1500 kg is accelerated uniform*h;twsgcg i55 ly from rest to a speed of 20 m/s in 10s. The magnitude of the netg; wg5h5 i*tcs force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the roadux6mx)e;m* ppl r a/o4dzw;zr0hl/b;. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the forceleo4 /rpzxpdzb;l 6;)x h 0/;*awmurm that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-trailb, jmwg-j4(a qer trucks generally accelerate muchm- gjw jq,4(ab more slowly that automobiles?

  99.19: A 50 kilogram skater athcj56 o.dmea -kbdo 9qoy/t*; rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocbo-d 5jc9k6od/qe.yo; ah m *tity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a wefmnpe;t 9afe9 e.v7j o ;cd,xv ms2+8hight of 100 newtons is accelerated amf+dx92;v8o7 ehecvnt9f ;epjs, am.t $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constant forcex 5bk/l,a2/s cpbv4i n of 2400 N. Wh/bicb 5sx,4nkla/vp2at 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 slidess2lzn/75baxfdbt1 9o across a rough horizontal floor before comintl/xnsbo2 5z a9 1db7fg 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/a9wy*:vg;qwvj) fx )y ki,l:ys slides 8.0 m across a rough horizontal floor before avww,fly v;q: :*x) yjgi9k)ycoming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person pusz hvc(u**ciw 2hes directly to the right on the box with a force of 60N. The coefficient of kinetic friction betwe* h*u(v cci2wzen 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 accj9 l5.og gpu7lelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the f9gu 7plog .lj5ollowing choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patc z.epgt)-oh e9h 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 ztp oe- hg).e9tires 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 slid9a x3 m0kxs.wies 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 coefficient of kisi.w 093maxxk netic 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 ank6 qi.8x7 y)or dg 1zxz 142uert,xfhu emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it dyhe8.tzfuzi1x,k 7ogrx6)u 2r41 xq had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control ea6ihs,e wp0b8 xch of the following devices. Which of these devices 6sx0phw,b8 ei 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 newtons is 2f37qia p6i xdr*3i6io4000 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 at takeoff?73i6 *ixpdfi qar3oi6

  07.21: A box slides to the right acr:2 ,qzb+(horqch( dc9jl/( h zbbd8ccoss a horizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mari:,hqbdccz qcor hz(l 2b8cbdj+(h /9(o 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 box.

  02.27: The diagram below shows three roller coaster tra6,stxv9inb v *cks of equal length. Assume that on all tt6*vv 9ns, ixbracks 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 be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coasteg gki(/hq z8nyvgpp.e+k8- -as2;sbrg(z7 z 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 tn/ks2( i (b.rayze;qskpz8e+ 8p z -g7- gvgghhe 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 cartron:7u9z nnxpvnjs0 s)0lls frictionlessly along the curved track from point A to point C under the inflz0 nn sjs0xnvun:)9 7puence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floeg ts t643u6xnor by a rope which makes an angle of 300 with the hori36 txtn46 ugeszontal. 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 wall by a 100 N fq 4u+,joo0gc gxh 2cd()s.jb korce as shown. Thecoefficient of kinetic friction 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 sech40oq j+o x (bk2ugc.jd,c) gsond?

  05.10: A homeowner pushes a lawn mower across a horizontal 4dkgiyr-//fpisy: 5fpatch of grass with a constant speed by applying a foypfikrs-df5 yg 4/:i/rce 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 CORRECT?

  06.14: A book leans against a craiif0b(4-q hjt te on a table. Neither is moving. Which of the following statemenf(qiitb4 h 0j-ts concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pullajqn uz*2md 6+ed up a hi26 n +juqda*mzll 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?