99.36: What happens to the inertia of an object when its velocity is doub o10fgjkt-m ivc-q..r- q0 qaoled?

  02.14: An intrinsic property of matter is one thatop 0h6z o*00f78jbvvqh cq4h o does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic properpoc46o0h v0qo7 v * qfhbhzj80ty?

  04.16: A 20 kg boulder rests on the surface of the Earthdn5w(zd q, mnqy 5)g0l. Assume the Earth has mass 05,mgny dq5 dqzlw )n( $5.98 \times 10^{24} \; kg$ 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. Wharvzi .pq3rr3spg4ted) k80b .t is the magnitude of the gravi s vr0gbk.rzqpp8t343drei). tational 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 objecu yax3.1 ;kj0oks+oiv dz3g m:9 oei0qt’s velocity to increase while its acceleration decreases: vi0ogsyx oea3mo u+1 zd.iq;j390k k?

  00.11: A certain particle undergoes e g 9m;qiy4g0hkrratic motion. At every point in its motion, the direction of the particle’s momentum q4i;ggy09km his ALWAYS

  17.14: A block is suspended in the air at the end oo3 tqkg: cr6yl/cw1a; f a string held by a person. The person pulls on the string uniformly accelerating the block upward q:/c o3ykw r6t 1lcga;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 constantx)hl5 2gc 3vqrly zero on the h5 lr3qv gx)c2object?

  13.28: An object is in free fall close to the g- ix j4itxu0uvm9*,haround. A person intervenes and slows the object uniformly to rest. Which one of thh,i-9xi v 0ut*um4axje 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 equilibrmrgy2xk , zm8(ium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant m 28gxz(k r,ymofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons wgj2ubnxl ue,x:.*t6/oyyff1au (l: can be combine to form a resultant with a magnituuul6xt(gulf*xaj: o,/ y b1.2w: ynfe de of which of the following

  10.06: Which of the following statements is most closel8)p3xk18g l qvz7 cnily associated with Newton’s Third Law of Motiovg 8xp8li) 17kl cnzq3n?

  95.06: The reaction force does nm dnn j 2lq 2kb7vw+7h)at.w(vot cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is acceleratingtgl f0mu-y+/f g2,n tv9yj gn1 upward. Which one of the following choices best represents the Newton’s Third Law pair fo- u ntn20ggv,/19yflgf tym j+rce to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward y *rihy09w6sfthrough the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair w9y 0 ir*ysf6hforce 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 batterswxkefd) 7 ctjh+3w /yem(fq03vings and hits the ball. The magnitude of the force that the ball eydq+jef7wh 30tkv)e c/f3( mx xerts on the bat is always

  11.13: A physics book sitsqcp o5u :naw(0d w9xabr:qe+. at rest 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 Law pair force to the forc9c e.nru:x+p:awq( aw0 bqd5oe that the table exerts on the book?

  05.06: The students in a Po- ckwf(6din 5uwg+39wujk7ohysics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were diu7-96w(i3 ukgocn kow j+d5wf splayed 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 w9hmw*dbcth (6 t ti +9d56ccljnyv 6s-hile at the same time the mass of the object was halved,then the acceleration of th(6ht sn6 hb6ml-v5jc9yt dcd 9i c*+wte object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly frfobjkd3 * im21om rest to a speed of 20 m/s inj*m k b3dio1f2 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down thkgaz25yiku/yi)4;s wkc ; sm9e road. The mass of the trailer is 4 times the mass of 9/;kyu 4k)s5a ick2i s;yzw gmthe tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles 5gljq0 )f3 spzbest explains why large tractor-trailer trucks generally accelerate much mofj )0sgql53p zre slowly that automobiles?

  99.19: A 50 kilogram skater at+ a4c0jwhtbrho8f qyjy 5p /;. rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement descriq;5yo8jjt/ y+harc hb 4.fwp0bes the subsequent motion?

  00.13: An object near the surface of the earth with a weight oisvp,kty45 u2f 100 newtons is acceli,vuky5 p24st erated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1nek sa.(veu;6200 kg is accelerated from rest by a constant force of 2400 N. What is the speed of ae;6k (n.uevsthe car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 mx,i(,jj n sk g/*y)c (a;hc gome6ps9k/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming toxsagy)9(k 6je*;(cpgn/m jh s i ,koc, rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rough 9hs :w;w*0nnop.rs iphorizontal floor before coming to rest. The coeffn: p 0rp s;s.whn9owi*icient of friction is:

  09.21: A 20.0 kg box remains at restfei )fsg2z4*ij zjs28 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 betweenji24fzz*ij)sef2s g 8 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 xjek .um+t r1jark86wn,.3b rat 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance of 12+j 3m 1t .kr.r6nejxrbawuk,8 .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 wit rotuh)8a-ej 1h its brakes locked. It then hits dry pavemauj-h) 1eo8rt ent 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 icznon;g(t hy *3e at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The z*n;h3n g(to ycoefficient 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 emergency stop by slamming on th0idddq-hq-7rad6co 3 e car's brakes and skidding to a stop. How far would the car have skidded if it had been trav 6doqrdq-da70 ih3c-d eling twice as fast?

  99.39: The driver of an automobile must carefully control co il-ekp55b)u (k1 lbeach of the following devices. Which of these devices can cause an acceleratiu llkp 5ke)51-b i(bcoon 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 new4,;xqdd;g9g b weghz. tons is 24000 newtons. About how much time is needed to increaseewhg9gb. d4;dzx ; gq, 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 callep /ed5 zf.-:ex- ymy.y*dota nd 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 theseo- yy .nd ey.zfda-/et5:mpx* three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal length. Assw*lu;(m.2 jdsbcun.i ume that on all tracks the roller coaster carts starub.l;( smnjd wuci. 2*t 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 bewgw ah 7a0+)urlow 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 moves frictionlesslwwuhr0g7aa + )y 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 afy*0drvu3* j*o4*wcz c j sgn7long the curved track from pow7*rvzu 3 *o*s4*fc0jnc j gydint A to point C under the influence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a rope 0 nrj,:xq49xe+dte yuwhich makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficien4xd jxrnq+, 0tee:y9ut 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 againyocn a6n;a9 y5st a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of stayc;n569ao yn atic 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 / g ni0:7uf8igubi,qn5d; py ohorizontal 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 fo/bi7y 0,8;ii g:n npg5uduq various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on awn0 6cryst-4k li e;,w table. Neither is moving. Which of the following statements concerning this situation is CORse kl0nc; 4w-i6rwy,tRECT?

  06.15: A crate of toys remainsnsj()i 8n+/ysrg gnx6 at rest on a sleigh as the sleigh is 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 (rngn gs8yij/6 x s+n)increase in speedup the hill?