99.36: What happens to-cp 2bb bwec 3ng6(lg7 the inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quanxle a) +;nl-shtity of matter present. Wh lxe +;as-h)nlich of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rer9egwi j h;3 ,4iyh7-nfi+teests on the surface of the Earth. Assume the Earth has mewi +;r9gje y4i 3h-fhi7 n,teass $5.98 \times 10^{24} \; kg$ 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 a(6dj 79 mnjtx4zj8 kkin free fall near the surface of the Earth. What is the magnitude of the gravitational forc98 d(xjm64 t7zj kakjne acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velp qrnc q.(+1x)kn 1o)xe grw8cocity to increase while its acceleration decreas x)or81.n+ qcnpekgq)wx1rc( es?

  00.11: A certain particle undergoes en0r-:uh*p7f3o kyo 9sau2bx zrratic motion. At every point in its motion, the direction of the particle’s momentum is An97 soru-0z p*bo2:3f kuayxhLWAYS

  17.14: A block is suspended in the air at the end of a string held by a jbyt ss(r5a5u*a* (butns 3- rperson. The person pulls on the string uniformly accelerating the block upward for a short time. During this a y(urtuns 5 5ss**-bbrta(j3time, 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 fol) hxws/*8;im7dqnc wvlowing situations is the net force constantly zero on the objec iw7;hncd8 sqwm/x*)vt?

  13.28: An object is in free fallpkm5 vo+ u8jy0yul -0p 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’sjpp08oulv+ k5uy y0 -m 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, andpzy:l,p yp *pox 9(3on F3 of 70 N,lpz,p:3o x oyy*(n pp9 acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can b o *r/cox)gdm4e combine to form a resultant with a magnitud*d ro 4o/cxgm)e of which of the following

  10.06: Which of the following statements is most closely associated with Newtony pbhk7j-(fdgl5;j )m’s Third La; g)jp bmjk-7lf5hy(d w of Motion?

  95.06: The reaction foa-)4wka 12 rx*e dqnqzrce does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accel zwo:5;pwxxt+2qq a hc.ftx:+ erating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on the box by+o:q xcthxwf;z5 :wxq2a+ .t p the Earth?

  15.15: A skydiver falls downward through the air with constant speed. q.z t4t(lbl3 bWhich one of the following choices correc4l q.btzt( b3ltly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed .qsa)3rnz4-f,iqgv c of 35 m/s. The batterswings and hits the ball. f 4-gi.sncva,zqqr)3 The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a ta,nvhd4)8n pxxt 9yiv)ble. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s T)np, hydv t9x)v xn4i8hird Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in (me1k4e5b w0za b7zv++jqts glab conducting an experiment related to Newton's Second Law. The collected data we7za k t+e0qsb wjb(mzvg1 4+5ere 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 the same time thew,/jly3fs-pl7q(:vl9gu qb y mass of the object was halved,then the acceleration of the object jsly wvlu/(9-3g q,by :pql7f is

  96.15: A car whose mass is 1500 kg is accelerated uniformly fr. id4wvmjk/agl7tzt jys6,,4:ej wv6 om rest to a speed of 20 m/s in 10s. T,da/4jw:7 v6te. g4vmszl wykit,j 6 jhe magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling dza8x /y /hhm d)wj.m7e1pw7tgown the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on tyzmj1ewh/xa 77t)w/.8m hgpdhe tractor is

  99.16: Which of the following principles best explains why large tractor0fv,mx5p5 iq7c fffieb t6mc9q+c.s,-trailer trucks generally accelerate much .cm5qi,,+ mf c57cpv0fbxse ifq6t9f more slowly that automobiles?

  99.19: A 50 kilogram skaterpm(bz g*-ixp 1 at rest on a frictionless rink throws a 2 kilogram ball, givzmgp bp1ix*-( ing the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of vitmv ,lr:c,;tehcpe17cyd3 5u p,)g the earth with a weight of 100 newtons is accelerated ahect 7y u,)pg ;rvd:c3v, c1lp,5em itt $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated fr yfq0p ,a th+imld65f7om rest by a constant force of 2400 N. What is the speed of the car 8.+af y0ih q7f6dm,5ptl0 s after beginning?

  98.32: A 3.0-kg block with initial speed t,pc9mu*x, xee8e j-k4.0 m/s slides across a rough horizontal floor before cominx ee j-*me 8,tckp,9xug 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 vefhs.7ywm+i i, t,v7l 0qlb2anlocity 4.0 m/s slides 8.0 m across a rough horizontal floor before col. v+2i, wam 77hqb f,yntsi0lming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at restl(r+ vkib1 ip; on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the surface is lik+b1p riv; ($\mu_k$ = 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 on k ,9u )7epwjz jbhk;g0a horizontal surface. The block travels a jkeg) p kj07 wb,u;9hzdistance 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 mass5lcrq9+b x6jp m slides across a patch of ice at a speed v with its brakes locked. It then hits dry pavement jq69+b5cxpl rand 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 of ice at a sp+iywdy,jzi b. dc,5,zeed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The cozj5 ,z cibw.id y,y,+defficient 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 emergenh/- q+ 25epf/obqz d6ubc,fctcy stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidqq 62 ubh/zc cfb -/p5do,+fetded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully cont/j:7hcb,exa2j; x tdplz a1q:rol each of the following devices. Which of these devices can cau qah de7;x2z,p x::ajcl/1t jbse 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 is4 n dpfdm+j9fee8c /k(ssji9. 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to dd9.e8(ems i n/cp+jfjs 9kf436 m/s near the surface of the Earth at takeoff?

  07.21: A box slides h rcni; m5cttv6b,.g 5gpvu,3to the right across a horizontal floor. A person called Ted exerts a force T to the right on the box. A person callg 36ng5b. ,vrtui,c hmp tv;c5ed 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 sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster track (zw.tzb2igbwy;m,l, s of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over i,2mlw t;w( gy,z.zbbthe 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 coaster tracku ug+1hy w;z-xfmm4 wnt q):(y) y-dcjs of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and movesjh(wy+)y y -zwut;nu c-4m1q)x md:fg 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 w /px .brlzerh s,ix23s 2g/k/frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction oflszr/hi s,w23 b/ exgprxk2 ./ the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a rope whi54j6 q deka-a:fn,i pnc(eb s7r (l+bych 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 required to move the crate at a constant speed of 20 m/s aspf ,r 6(akaqi-yj57 b+ln(ds nb 4e:ec shown in the diagram?

  04.40: A 6.0 kg block (serkh7zh i;8 initially 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 is true of the friction acting on thr;z8 hi(k7 hsee block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a hor*bd nak1/ r-dqizontal 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 magnitudd/*k-bdaqn r 1es, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which dlx+; v:up w4sk qe50vof the following statements concerning th5vu:4l wke;v0qs x+dpis situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sl:6uqe( pho+lfgg 3v 8ueigh is pulled up a hill with an increaspe g 6(uu+gq8h3 :olvfing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?