99.36: What happens to the inertia of an object wh;r1mqfl-0kfqv5 w ;lqen its velocity is doubled?

  02.14: An intrinsic property nvf0yyt8a*v*+g0r 8* veft evof matter is one that does not depend on the quantity of matter present. Which of the fol*feev0+yy v*vg0*tra88v tfnlowing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the s jgj6.yot(qn6m 6l/e;v3 u1e7zzlipvurface of the Earth. Assume the Earth has masevm g;ul6v( e1t. /l6oiyjz3zq 7p6jn s $5.98 \times 10^{24} \; kg$ 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 thq 0asz*-s;pjq e surface of the Earth. What is the magnitude of the gravis ;jq*0p asz-qtational 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 l)+ed yg7gg*z object’s velocity to increase while its acceleration* 7 yzegg)d+gl decreases?

  00.11: A certain particle unde/hde:eup4. ho1ezc5 hrgoes erratic motion. At every point in its motion, the direction of the particle’s momentum is Ae1h:c5 ./ee hp4dzh uoLWAYS

  17.14: A block is suspended in the air at the end of a string held by a person. l xxx *ptz/q :7.c6ojbThe 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 theqc6l p7z.xt jx/oxb*: force of the string on the block?

  07.18: In which one of thndc8e) 8u4yyse following situations is the net force constantly zero on the obje uy8c 4seny8)dct?

  13.28: An object is in r5g aad.7zo s-free fall close to the 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 a-s5g7ora.a z dcceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30muj3dc.n7) t zo b93tl N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the rt9ul.n3cd)tobm73 jzesultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be co( ( o5xaztq5icnv.rzr px l usn86ae**gba4*3mbine to form a resultant with a magnitude of which of the followib*l5uo(r*px3 s8az a* z(n4 vn. aerqit5c 6xgng

  10.06: Which of the following statemea pi/nulz l xmbpz1tfx9/)8.b h934nints is most closely associated with Newton’s fi 8 9 aixn hu941l/3nltpbbzx./)pzmThird Law of Motion?

  95.06: The reaction force does pyz8 p vl;fedw 3b*x7:not cancel the action force because:

  14.14: A box rests on the floor 7v(dhu p1xd3d if 1i)uof 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 fuuhdi7p1f xi( 3d)d v1orce acting on the box by the Earth?

  15.15: A skydiver fa jdof 4;dc+ry+ 9mj7 q(5wdzaylls downward through the air with constant speed. Which one of the following choices correctly describamj7yd +4rcfo y(;wdd5zq9+j es the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is i :e akwpfy,9.w(ek+ xthrown by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball kpey(+a: ,f iwke9.wxexerts on the bat is always

  11.13: A physics book sits at rea)8t.scw;1c ygs9pp ,z cu) lost on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third aps 9.p c1u c)s lwgt8oz,);cyLaw pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting anq :o;9de loz3g experiment related to Newton's Second Law. The collected3lq9 o z:e;dgo 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 doubled while at thqmr lc0( va) g-lkz2m40 if,jbe same time the massjvgfl m( ,z 02klbq0- mr4c)ia of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500q;7y6lyzbj0k;* idv .c 8kfj 9z*ct qk kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force ackzq0.l9j k 7 fc8;v c*t;dbyiyjzq*6kcelerating the car is:

  99.05: A tractor-trailer truck is traveling u2c- qfn:3 i3*()ome lo yb9k0 mbehomdown the road. The mass of the trailer is 4 times the mass of the tractor. If the tr9kbcm)oi3qemn0 *:23 (ym leb- oufhoactor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles beycf2 ys:/3 6zyh:mvuswb 3to7st explains why large tractor-trailer trucks genero 6:/cvymu2s yyfw3 zs 3t7h:bally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless u:/oth4fj29 . uhpcp urink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motioo 2/u 4 pth:fu9phjuc.n?

  00.13: An object near the surface of the(y(:bq)-/ke osixwc l;c (9uh3om bko earth with a weight of 100 newtons is a;/q- s(()k9 b(xbhek3m oco:olciuwyccelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg i ti i937j)8uk fyjyq 8jjbt(p mvr92s3s accelerated from rest by a constant force of 2400 N. What is the s3 qrjt(kpsbij8mvt 97jf yi923u8 jy) peed 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 horiz.ldaj(oz*d;xi h fj)) 862x aem s2btpontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slid8 ( *sxf; p xam2d6e))jia2hzoltj.bde before coming to rest?

  95.38: A block with initial velocity 4.0 m/s eas9xwu0m+ p:raa. h:slides 8.0 m across a rough horizontal floor before coming tp:9xa hse:w+0ru ama. o rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a j3s4di )+m/l rm 2nesrhorizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of)mdn4ej +32r rss/lmi 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 npglp 8nqu3:8 2xptw,at 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of th:pg38wxt p2uqnnl8,pe 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 br0ad c9rfw/4h, zb9xgm akes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the ti4a9xgbdr /9h0 w,fczm res 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/c tr.3xm rb.tac+3hd brakes locked. It then hits dry pavement and skids to a stop in t r +m3ah .b3c.dr/xcta 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 a7 xy(-1gv0 nz2ukj piaz82s to car 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 22souijz(7gv ty-npkz 8x 10atraveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the following 2l7,pak;q3 u+gm yuxhdevices. l72 k3u h,p;myx+aqgu Which of these 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 2400o9lpbx3f2meqx5 .+iu0 newtons. About how much time is needed to increase the rock5.xmoiqbp 9x+e2lu3 fet ’ 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 across a horizontal floor. A person call ov p++ngz.)d7pz(a g zit2to1ed 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 tgz+z2 p1 )dvzo+i tp.7(ganothat 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 showson 9u/4zpu,,1.r oke zjr(u nhvot-m- three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elev, zt-, uk1v. rnorope-u 9jo/4m z(uhnation 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 b 5j ((n; egrvyx2ysxo 2n)xz(ielow shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elsi2z( x5(yg2(nxjyv;eor xn) evation 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 curved tgsimpt /iy 8+* z r4ggsm3e(k-rack from point A to point C under the influence of gravity. What would be the directiek-/rgsgy g3s( it4zp +im8*mon of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the 6*iavv(f ds2n 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 *6df(vv2a ins 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 j6 q+fvlvt74gh3p qi4a 100 N force as shown. Thecoefficient of kinetic friction is hjv3 l vfp gq7it644q+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 kcup-r/lqtd.-ud;u1 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 forc-d.rlc1dq/ ;u tupk-ues 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. Which of w ltc:jz1;h+b k23lk mthe followimc;w1z:t kk 2lh+b3j lng statements concerning this situation is CORRECT?

  06.15: A crate of toys remains g) ixhn89h1oa +c2bnxat rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastenaxbi8o 2h9+n)c h1xnged down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?