99.36: What happens to the inertia o6frpr hdgys/819; 8jaxjqif1 f an object when its velocity is doubled?

  02.14: An intrinsic property of ma.;4wbja ,f ,8 bsh3z,k3fl+8ncz mc7hnql aettter is one that does not depend on the quantity of matter pk8mtz ze . wcb,a3l87;hqbfnsf4, 3 jcl, na+hresent. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assuuv4)mj :m:5 tcj23e wsg bprnv)t2*bqme the Earth has mass e)3m wu)vvnt5 t r*2s2pjc b4m:bq g:j $5.98 \times 10^{24} \; kg$ 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 surface of tzz.7kbc0de grbs/ )r7he Earth. What is the magnitude of the gravitational force actincbzg7br7 /zs0 k.r )edg on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an v s(/u42dtbjf79 vq etobject’s velocity to increase while its acceleration decreas 2bs9e(t/tu j74dvqfves?

  00.11: A certain particle undergoes erratic motion. At every point in its motig5j*0-fwzlo ufx:ep9mod lz/ 6 nak7/on, the direction of f zwk -n 5 ux7z6jfe9/lamgod:/ol0*p the particle’s momentum is ALWAYS

  17.14: A block is suspended inpaxx)a i3 s(59jjle*x dc1:x g the air at the end of a string held by a person. The person pu)1jsca(l9 5ad3 eg jx*i:pxxxlls 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 force of the string on the block?

  07.18: In which one of the following situations is the net force constantlxr z2:wd0;+cqlqt jn7 y zero on the ob2dq0+trz:x l 7jw;qcnject?

  13.28: An object is in free fall close to thetl,)+ tcv:z,njo(hag1w q am * 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 agwmj)cahv,q t(: nl1a to +z*,s 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, F1 of 30 N, F2 of 50 N, an v-fk* hfc 6wtwums.zm*de+ y7*zd9w;98fbpbd F3 of 70 N, acting on it. Tzm*6 f;7*w+u mzwtd.cdv99kfwysefh -* p8bbhe magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 nebc42vtr6arq 8 wtons can be combine to form a resultant with a magnitude of which of the followin r64atbq28rvc g

  10.06: Which of the following statements is most closely as32a /jh:f sng.tv+mft/ndi3 bsociated with Newton’s Third Law/bj+ fg2dts:ftnahn iv /3. m3 of Motion?

  95.06: The reaction force does not cuznj1vec8u*q5n u.+ 7 yiu b;.bjs 3urancel the action force because:

  14.14: A box rests on the floor of an elevatok 59dx ;ybq 3fsgf4/bkr. The elevator is accelerating upward. Which one of the following choices bxygbs/qk 3 fk5b 49fd;est 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 the air with constanmsp(3dbej 6sd p0o)o:t speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydivdmpso3 0sj:db(p)e6 o er during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 9 bn 4sgk56s* nsktlh+35 m/s. The batterswings and hits the ball. The magnlsb+ hkt5k4n9gn 6ss*itude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table.glzpx33nq4- l u c-nzmx(/ *ad On 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 3 lz -l/p4 xd3qx(-ng*cuanmzexerts on the book?

  05.06: The students in +wfipc1 m dsh; 57whf:a Physics 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 graph, what conclusions can the students maked+;fcf15:ih w wpm7hs ?

  99.03: If the net force on an object wer hpzn-q,b)tjcvs. eay)) d6 9ne doubled while at the same time the mass e )azh)vs6n-,.9dyjnpb c tq )of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated u3 18ujn(lmjh;fjr:do/v.as j niformly from rest to a speed of 20 m/s in 10s. The magnil( hojj/j3fdnj8; 1.vr asu:mtude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass ofcmb2,)z 8ufpbn5 a2/cw ceoj) wu8,c i the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, ,)awe8 52) cic cb8om2zupw,bf/ncuj the force that the trailer applies on the tractor is

  99.16: Which of the following p3t q67hhb+9pvgyrfo0jpaa9rt *7/pyrinciples best explains why large tractor-trailer trucks generally accelerate much more slowly tha9p07 rhtgtp6/o9rfq73b aj ayy vp+h*t automobiles?

  99.19: A 50 kilogram skater at rest ok z6nw7 p/fh ay7n6:nrn a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which state 7wkpnzn7yf:r nh/a66ment describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 n 1 )(x qovk:cjailp seq),/)uxewtons is aj/o ,xi(1 vpes)x)qlkua): qcccelerated 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 k; vsjz)vr:e 9a constant force of 2400 N. What is the speed of the car 8.0 s afjrz )ksve v;:9ter beginning?

  98.32: A 3.0-kg block w sf7u jnguf)v7l f),; ;beay2aith initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the blockfy l,;g)7anf2b usafv ;)e7uj is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4pnbe ;r.ud,zv jf+,)c.0 m/s slides 8.0 m across a rough horizontal floor before coming to bc; ,p, evfzjnd. u+)rrest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person pushv 8pgb 4)zo8ftn*o kd0es directly to the right on the box with a force of 60N. The coeffici 4n gbk0zvfo*t8o)8d pent 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 accelerates uniformly to rest of77k( ybup ei:/nfmn8n a horizontal surface. The block travels a distance of 12.0 m during the:b /f7fpenn87ukiym( 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 at a speed v with its xt rkh;q )sb5d:1 -o8 8elbbip4+tjwzbrakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic frictionr8kb-t;bohqesw : jbzx )d +l8t5 41pi 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 p 49*xzbb7lzaice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distapa*b4z lx97zb nced. 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 emergencyseb14sarai v9 md3*8d stop by slamming on the car's brakes and skidding to a stop. How far would the car have s8 a3vdr1asi*4 m9bdeskidded if it had been traveling twice as fast?

  99.39: The driver of an automobile mu;qi 2i8 kb:zbist carefully control each of the following devices. Which of these 8bi:z ik2i qb;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 newtons is 24000 newtob+ifi2dtdaw0i/ d,j / ns. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface oftai +2bwdii/d d,0jf/ the Earth at takeoff?

  07.21: A box slides to thtrd8;w jqsp,g p,pyfle7/ x).e 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 sizeslpys g f,q jtx/).rp8dwe, p;7 of these three forces exerted on the box.

  02.27: The diagram below shows /s9b;r(j d tcythree roller coaster tracks of equal length. Assume that sj( yb d;rct/9on 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 be traveling the fastest at the finish?

  02.28: The diagram below shows thrypj5 +:6q xfbfee roller coaster tracks of equal length. Assume that on all tf +qyb5: 6fjpxracks 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 cur93bft(iv1 qavp6qr l go:93 zzved track from point A to point C under the influeib61rql q9zv o9a 3gtzp3(v:fnce 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 floor by ac3 ;mhs38c4xhg 6ulof rope which makes an angle of 300 with the horizontal. Which of the following would be closest to theuc 8cs;4m 6gx 3lh3hof 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 initg b wba)at/;2pphv1n 9ially 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 ish 12v naw;9atpb)g/bp 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 with 6.4mvagocv;,+jx l uha 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,ugaj. ch,vm v+lxo6; 4 f, N, P is CORRECT?

  06.14: A book leans against a crate on a ts)49wdck,0w yrythz( able. Neither is moving. Which of the following statements concerning this ytw 0,z yhs)dr (cwk49situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleim l per xf yw)ew6 m4;4xno80i(o+i*/ odzq(ewgh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup th p(r*;/q0l8zx+dem x4w6ynf4ie (wo e oiw o)me hill?