99.36: What happens to the inertia of ant5 3a6w6mxaa xh o /vg5eunn65 object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the joqt/,j kq o-;h1tq1wquantity of matter present. Which of the following p,-hjq/ kj;tq wqt1o1 oroperties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the+vk.zm 1sty0n:nc* r o surface of the Earth. Assume the Earth has mass .0s 1 znvm+o :yrnkc*t $5.98 \times 10^{24} \; kg$ 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 thes6 cnh+ s2xv6; m:jyaw surface of the Earth. What is the magnitude of the gravitatac:jv; mhxys6n6 ws+2ional 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 object’s velocity to increase while its accelfl a0wm6alr/;+s8uqebk7 f; m vv97a keration decreas6m maq+f 9r /;0 lafsakv;8kvewbl77ues?

  00.11: A certain particlgv kstm2bj ./q5xlc95m,t.,( qoa y0gq+bwtt e undergoes erratic motion. At every point in its motion, the direction 9,t 55q2t,vj ltmx.0cqm b /wka+(.gq ygbos tof the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a prigs 9v5-dz ;person. The person pulls on the string uniformly accelerating the block upward for a short time. During z9s5i gd;vr -pthis 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 d ;n+c-1liktd hf03i* 7rzh b ti-lm-lsituations is the net force constantly zero on the objec0 ft-+i 3hthc lnl;l1ik-bi rdd m7z*-t?

  13.28: An object is in free fall close to the ground. A pif2ty wq; 9qejf98;j uerson 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 acceleration is a and the magnit; ej9;f8f2wuj yqq i9tude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, (p acled+17t l o+zageen21ol9g+ oo 5F2 of 50 N, and F3 of ol lnt(11eae g +op+o7+g59ezc dal2o 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtt(p f/c( exqhw3 45mafons and a force of 10 newtons can be combine to form a resultant with a magnitux/cf5(4t qhfem 3wp(ade of which of the following

  10.06: Which of the following statements is most closel art5fx2) e7rvy associated with Newton’s Third e5rrax) v2 t7fLaw of Motion?

  95.06: The reaction force does not cancel the actionch:a5yng l) i7wx )ae9 force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating6y4uobio. r w5 upward. Which one of the following choices best represents o i6r.4yub5owthe 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 constan31 9 8+rdzmchck lr;9oe.rk nxt speed. Which one of the following choices corr8.hk9 o;z3rmcxec9ndr l1 r+kectly 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 of 35 m/s. The b7q ph8 dh .8lp/lh2utratterswings a.87u8 2rppdh qlh lth/nd 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 onw;p a;nxqp( 6j a table. On top of the book is a calculator, also at rest. pqjwx;a6 (;p nWhich one of the following choices 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 I class were ds8g.mw 08ll min lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, whatws0.l m8l8d gm conclusions can the students make?

  99.03: If the net force on an objxmav8m)4x t99 0sodtw ect were doubled while at the same time the mass of ttwxx4 )vo8 9sdm t0ma9he object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelwu,c dcok2b7mp(f x;1erated uniformly from rest to a speed of 20 m/s in 10s. The , c bdfp712 k(wxm;cuomagnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the tra.mf+:s jtmn3k iler is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the ns tjk.3+mfm:trailer applies on the tractor is

  99.16: Which of the foll*v2l )(iqgz/om,v rj vowing principles best explains why large tractor-trailer trucks gl i*r2gj/v mv)oz(vq,enerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a fr tafj-5pn1df -ictionless rink throws a 2 kilogram ball, giving the balln-1adtjf5- fp a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth w x(63iko5hd fwith a weight of 100 newtons is acceler5dhofx( 3k i6wated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 12tkvjt x1 g 1r6o 3u:sym8txxz(w922iw00 kg is accelerated from rest by a constant force of 2400 N. What is the speed of thrz:u ko1ttvy j61stx2 wg3 8(x m2wi9xe car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 (*z0:w (lonlu:cgw dvm/s slides across a rough horizontal floor before coming to rest. The frictional forcwoznl (gw u0d*vl(: c:e acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rough horizonkuoo f b qc,5bfi,su5r9i av1f9.qt5, tal floor before coming to rest. The coefficient of fric5.b5,,qf5 ffo,bs1cv ikoqa9uur9t ition is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface3 wkmqala4w.7l5j k)u while a person pushes directly to the right on the box with a force of 60N. The coefficient of kqluk)ma.w7k 5la34jw inetic 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 initia tidkb;u ofx.*m5-0 vllly moving 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 thf5lx*ovi;.ub0 td m -ke 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 brakesxb1rj9d 0xxe ,bt ;o(s locked. It then j (xx b9tso,be0xr1d;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 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 it*owfl sxo*6f rgj m,m( /qd4y-s brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction betw f x *,mq(yr/ljso g4wo6-*fmdeen 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 mk/ )ef g3okl5 cfo*7poakes an emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it ha3)of5o*olpk7/ fk gecd been traveling twice as fast?

  99.39: The driver of ab 7soy1b450*idiha ou n automobile must carefully control each of the following devices. Which of theb4 id*o0i1hauso57 byse 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 newtoyaysi .+nh2:fs m:pu;ns is 24000 newtons. About how much time is neede; 2afius.yys:m :+p hnd 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 across a horizontal floor. A person p ws)sn; lril/v*0ndggq .s*1called 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 sizes of these three forces exerted o spinv)g1w;0qln*ds*/ r sgl .n the box.

  02.27: The diagram below shows three rolmpcj a)tcpu x kx.w 9);-xfx26ler coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevatxktpxw x.f-)c;u 2cpxa9)6jm ion 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 rol68tyoyw 6zni45 s:pzxler coaster tracks of equal length. Assume that wzy snpx48zo 66iy:5 ton 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls friction -n.a (edmcg soee0s7,lessly along the curved track from point A to point C under the inodm-gns0se ( c., ae7efluence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass ofww.2lu nprp z-23ww 0p 50 kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of t.ppzrnw lw2p20w -w3 uhe 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 as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed againsyrm 4*1 ng8bpk ne3b7lt 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 ofy871mpbe 34krbnl * gn the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower .h 2 9+x;k aqmjfajlv)m 5l: o-ynm:kuacross 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 following relations among the various force ma:h29uq ja)fylk omm+;anv: jkl x.5- mgnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is m.a aoq)elu/.b 179orkc+- kzcj tuh+o oving. Which of the following state/ oeo-+rk1.ta zh+oc79quc )kbjal.u ments concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sle ;nuo1 d67wmwb0p+t lyigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. Wh7dwub+ ywm1 p ;o6lnt0at force is responsible for the crate’s increase in speedup the hill?