99.36: What happens to the inertiayg v,tljrt:87 pxut9 d9z66d w of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is3 ppb-l/- msof(: in9pn4qdcz one that does not depend on the quantity of matterqpzo3f:cn nb-m4/( -ls 9 dipp present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth hasi:u3( a gzho8f mass uh(a8f: izog3 $5.98 \times 10^{24} \; kg$ 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 fre/ocb -g l8,os6g2 ;pnf (p y..tiuzehfe fall near the surface of the Earth. What is the hpb6e8 t. /s; ucffzg.(i2l-p n,y oogmagnitude of 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 objeg9nbhc j 6xf(4f)br g(ct’s velocity to increase while its acceleration decrbcf jh9r4 g (fbg(6n)xeases?

  00.11: A certain particle undergoes erratic motion. At every poi;9 -l *jvvi0ehatl5shd:c w2o nt in its motion, the direction of thoh;90l d*5aji -hs lvecw 2vt:e particle’s momentum is ALWAYS

  17.14: A block is suspended in the aiza g5ot v,)n.0.d;cldua kpw lr /v5a(r at the end of a string held by a person. The person pulls on the string uniformly accelerating the block upward for dcanvrd.aoz0l),lk;t5 .g5(v/au wp 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 situationsnw *p klp* ph9vso++r n78bcq4 is the net force constantly zero on th8o9 r* l4p7p++ nnpbcqhw*ks ve object?

  13.28: An object is in free fall close to tlz)51 8cb)re oscs7vhhe ground. A person intervenes and slows the object uniformly to rest. Which z1 5)c8lvoc rss7) ebhone 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 acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 N, and (/mm.wa;r ihyx ls7 pbt7m7 8oF3 of 70 N, a7;i.a tl7 mxhrsm8y/ o(p 7mwbcting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of nw)jv p (umsk1f)tn /-10 newtons can be combine to form a resultant with a magnitude of which of the follojup-tm w 1)(v/s)nk nfwing

  10.06: Which of the following statements is most closely associ-2ew o6n x 0,g;cvkawiated with Newton’avo ,ie6cxw-k ;wn2 0gs Third Law of Motion?

  95.06: The reaction force does not cancel the 7r2meg7 llkp o,jnw,9action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accele8gqq +11nw swtrating upward. Which one of the following choices best repr +sntq81gwq1 wesents 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 constant.px0.w z-(m 3n4yoghxdn aho3 speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver ynaz hp o.3hx wm4gn(x0-d.o3during the fall?

  06.08: A baseball is thrown by a pitcherj,q .8v1aringiw -;c v with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on theij- g q1c,inrav.;w8 v bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a cal ev51 0cqa+nv ml+peo(culator, also at rest. Which one of the following chovca1+m pv5eo l +0(enqices 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 (t:i me 2;1qdq uru:qsI class were in lab conducting an experiment related to Newton's Second Law. 1ud;emq2 tqq:u(:isrThe 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 were do pj 95n4xj,lnlubled while at the same time the mass of the object was halved,then the acceleration of the object isjl 4j5n,px9nl

  96.15: A car whose momy;, 3oq3bicz5jc,c/*i)g/wud m es ass is 1500 kg is accelerated uniformly from rest to a speed of 20 m/s immb3 z/35c*gcs, )oe/y u; odicqjiw ,n 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The maqeb( sew wqyiaqyj5(d/ (24n9 ss of the trailer is 4 times the mass of the tractor. If the tractor accelerates for yy2bsw5a/( qq(4w9n (j qedeiward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor4n6a1vikx l k+-trailer truck+k k4lv1ni6xa s generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rinkkg.*l n:u nj/l throws a 2 kilogram ball, l/: *nnj.lku ggiving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the s0jfa mt2w9n uof5b2r0urface of the earth with a weight of 100 newtons is accele 5j0m22fa no 90rwtfburated 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 constanw0nog9c:x:6h m rkgo1 t force of 2400 N. What is the speed of the car 8.0 sh90n1:ckr xmo6 o:gwg after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough hori()+ xyxhx/ bw;ug n)v;b) kmwfzontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming toxf n; kmuyx;wb)b)wx (g)v+h/ rest?

  95.38: A block with q9g2:l6ng z dainitial velocity 4.0 m/s slides 8.0 m across a rough horizontal flnl d:6z ga92qgoor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a personz ko x-0*zvs 3cdy :3t5eee4s)lk 7j:iyzb3os pushes directly to the right on the box with a force of 60N. The coefficient z isoyevoc3l 03k- :s: 4)z7 3zej*exsdy5kbtof 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 g-w7c cw48lnz jbc,*iuniformly to rest on a horizontal surface. 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 bloc4ncw*zl -jc 8cb,7g wik?

  00.21: A car of mass m slides across a patch of ice at a speed v with its b;v5vf u;1m *owb-sbyr mvn:3trakes locked. It then hits dry p ur1ystvm;b*;vw5 -n 3b:mo fvavement 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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch o-s )(jope 2i qrhnw7ei,d:+s if ice at a speed v with its brakes lockee)- (7 2pdswrose jh:+niiiq ,d. 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 .

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

  04.32: he driver of a cgq +a-5 b9wa(nbuj ll/ar makes an emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twia j-llan u/ (wg5bbq9+ce as fast?

  99.39: The driver of an automobile must carefully control each of the following 1,i*wmwu 59 9:pui bwrn(uyuqdevices. Which of these devices can cause*yb, u1w9ui:u5wrn( ip9qum w 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 o7c l ,gd8:n botc/3e8qs6h2 qcruzht5f 15000 newtons is 24000 newtons. About how much time is ne/so8d7tbcc eg6th5nzcq23q ,ru :8 lheded to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right acrosrn dg:l6z2 je r6 8/hnke93jjqs 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, ra/ r6jkjg8n dl3zr9hne:62q jenk the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coasq 1pp+wv o ;(6brsa:nzter tracks of equal length. Assume that on all trac1ar; (opv:nz p6sqb +wks 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 coaseow ka*0 )qq2m1c(wubter tracks of equal length. Assume that on all tracks the roller coaster carts start fromq12bm wo)k e(uw *acq0 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 4j.drb 0 ebc8xalong the curved track from point A to point C under the influence of gravity. What wou. 80xdcjb4eb rld be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged azga5yfv 9 8ekhfo2mp(8x c 1p8cross 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 okz 88g2hp9m1 fxa8vcp(e5y fis 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 0o .;(c2d-lmpsbu o23pt -th /brvzeeN force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is trueu2(optb-e3d et;/bpls.vz oc2 r m-0h of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal o2af+x7qa 5*epnr os9 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 CORoxr2q+e* po n sf5a97aRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which of talvb n -wi7qe. nrgc3 4qpw5r)1v 7lr9he following statements r).9 e1qlbi 7 q-a w nrwrgcnpv7453lvconcerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh iscou k ;i,g ju225;deew35khwc 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 khiww2 k;g 2dee ;5uu3,oc c5jin speedup the hill?