99.36: What happens to the inertia of an object when its vkf 3 ab7k9g zyom)l1dwgf3r3) elocity is doubled?

  02.14: An intrinsic propegk03tla9k2e saew1x 4d7ld(6+cxep hrty of matter is one that does not depend on the quantity of matter prese04kksc x6ld e27 p+a a3x1(t9wghde elnt. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume thezkv2 :79g/pdxw5xm,8wh3ya dcf .n kr Earth has manhwkfcgd r/mxdva9x .w28y53 k: p7,zss $5.98 \times 10^{24} \; kg$ 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 the Earth. What is.eo+vhz iqc:o -r p(lm0y+0wx the magnitudcv++q-:z( h y owl omprx.ei00e 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 objeqk/r* xd9.uxm vlzit5s ( 6vy8ct’s velocity to increase while its acceleration dexs utyr.*zq6v5(lmx/ i8 kvd9creases?

  00.11: A certain particle undergoes erratic motion. At every point in i li.5 ofbryw:efruev- ;l-r58ts motion, the direction oir e8 flf-.:r5br;u-vl5 o wyef the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string hv , +f3 aq6 2zkiojj2+e)kakvkeld by a person. Thk ,q+zaj2avjvoke) i 2kf3+6ke 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 force of the string on the block?

  07.18: In which one of the following situations is the net force vt g/v+tyl9/gl.9 jluconstantly zero on ttl g9.9uglv/ tyjvl/+he object?

  13.28: An object is in free fall close to the ground. A perso5 8fnd*ijtz on6 b8s2kn intervenes and slows the object uniformly to rest.2no58z8i ksb6d fj*tn 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 a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of cvxh2qhp7/ qg6.f cy( 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultanhc6q/v(qyx72p. f chgt ofF1 and F2 is

  01.07: A force of 6 Newto2f+; ft/rlvpfv 4zmu 9ns and a force of 10 newtons can be combine to form a resultant with a magnitude of which of the fo2lm;u9+v4ft frpzf/v llowing

  10.06: Which of the following statements is most closely associated with evz7cy ac9) i.*;+ xjqtb*z ndNewton’s Tij*n;tx b qdyzezcv 7)+9a .*chird Law of Motion?

  95.06: The reaction force does not cancel the action force becaukmvb d7) ovxo9o ;vec:ad;9 wa0,. ngpse:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating h2peh;j,d dfy3 xoneb s a6c34b9 v22wupward. Which one of the o2hn;d3 4f6 e3,phjcyse 29vbwa2 dxb following choices best 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 constant speed. 5irm(1n *-hyxe d7wndcik2p/ Which one of the following choices correctly describes the Newton’s 75/mi 2rk*1(hxcyi pwn e-d dnThird Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher witt2i exd8: qt6qh a speed of 35 m/s. The batterswings t: d6 xieq2q8tand hits the ball. The magnitude of 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 5)o bnbd :ci. uec/o,kem5b-pa calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that :n) 5ecckb.- /e 5bdo,mpbiou the table exerts on the book?

  05.06: The students in a Physi33p.m16) xc*d4 lxm i yxxxwczcs 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 cmxpwmxl3*1x4 dy6z.c xxi) 3, what conclusions can the students make?

  99.03: If the net force on an object were doubled while vnan7 (4lcs0b at the same time the mass of the als0(nnb7v 4cobject was halved,then the acceleration of the object is

  96.15: A car whose mass is 15006:6el bbhe. xm kg is accelerated uniformly from rest to a speed of 20:6eb.exh ml6b m/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truckdsge-m7 hp i0+ug6jt/ 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 trai 6e/u tdj0m7gph-+isg ler applies on the tractor is

  99.16: Which of the following pr44pw4 vun3(qh)ygjtu inciples best explains why large tractor-trailer trucks generally accelerate much more slowly that automobilvun4y)p 4q j(wh4 3ugtes?

  99.19: A 50 kilogram skatersr ezr2.kh 1qgr3 )h1c at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 1r3)r krs.1hzqgce2 h1 0.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth k;,/auftpy3b *f/phmwith a weight of 100 newtons is acctf*by ; ma fkpu,/ph/3elerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is b, l.a7/gmp jkaccelerated from rest by a constant force of 2400 N. W7.j/m gl bp,kahat 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 horij0 w pny m.ci5n95o7kuzontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How fa n7jmpiun50 5 .o9wkcyr does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s 9g j9x rd gn)nyyk;g0)slides 8.0 m across a rough horizontal flogxk y 0r9y;)d) njgng9or 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 pda, :v(i3 cldeerson pushes iv:adel d(,3 cdirectly to the right on the box with a force of 60N. The coefficient 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 unik6ahm8i b xbtj9j:l/ dt 2a*r(2xfm+tformly to rest on a horizontal b:jx9alk(im2rhd6t a/tj b +mx2t f*8 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 block?

  00.21: A car of mass m slides across a patch of ice at a speed v with itcwe nd0-i5j;ys brakes locked. It then hits dry pavement and skids to a stop in a jdyec0-win;5 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 of nkpyy-fa/ bc)w8lyhq7 j ow;-qr1/ 6sice 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 tires and the dryw cwy)8h rq/f ;jl761- ysqobkny-pa/ 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 emergency stop by slamming on the car's brco+ear/iytl/j; si mg:99 e h6 sl2cs1akes and skidding to a stop. How far would the cailc /+1jr/s92 hem;:6c l9t ygaseiosr have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the urv9op1evoua*64,rh ki-/a dfollowing devices. Which of these devices can cause an ahr*vv/ e-9,6u oipd kar1uo4 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 nem. )vx(.jme6zs6ikz4y. xu gewtons. About how much ts 6xmeiz.k) ymg v.4.ju6z( xeime is needed 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 9ycfifyc34 e(the 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, rac(yfc e39yf4 ink the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three uj2m6f d, 4xkwg3,m vzroller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation anw,gf jx,4zkm 3 vd26umd 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 belowj:,xdfwyxhdn .-jw*jvj t,:: shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and mov h-jj j*nwt :xd,:fwx. y,vj:des 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 curvedi- ds48 qhmcp*nz/f,hi,mj w8 track from point A to point C under the influence of gravity. What wou zq m8jc8*,n dsm/4,hh-ipfwi ld be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the flom(tq r n xhwbp(/26sj;h6q+pa2,b e ynor 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 26n/ pa,whq2;jsr6q p(mh+ ( bxeytnba 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 i*)4 ;scat d lf8w/nmpls 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 is true of the friction accd/n;afw8ml 4ls t) *pting on the block after a time of 1 second?

  05.10: A homeowner pu,,x1t/ of i* ssaymw*pshes a 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 follo*,*fsmy/wp i sa1t, oxwing relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a tab+z8 fyrj6n5hi le. Neither is moving. Which of the following statements concerning this jfz5 ri8n6h+ ysituation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is (e -)xcsaa.5s jo(8 r riflq66hx5py xpulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsjir e65s.xaolc85fx (a)6pyq(h x-rsible for the crate’s increase in speedup the hill?