99.36: What happens to the inertia of an object when its velocity is dk 5(uj1ekjz u20m *1eptwl ju)t5w. nkoubled?

  02.14: An intrinsic property of matter is one that does nqq cq,rvok j0f4v /w0k05 eo*lot depend on the quantity of matter preseno5j kc00eq/q flwkv*qr0 ,v4ot. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assje)mb. wxx 2y(ume the Earth has maxmy w2.(bj)e xss $5.98 \times 10^{24} \; kg$ 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 nearz3y 8jwf.qkth( t7.8 lq gmc-f the surface of the Earth. What is the magnitude of the graq7thfk t l3zymq-(wg8. .c8fjvitational 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 whil(el :(dtro o*be its acceleration decreases(doe (tr o:l*b?

  00.11: A certain particle undergopiuuq1cs qu2e7 h8k;b*. nn3ees erratic motion. At every point in its motion, the direction of the particle’s momentu 1bn* q 3se.h7u quc82keu;ipnm is ALWAYS

  17.14: A block is suspended inppz j5lqfe3zq(9u .t hc89 r.b the air at the end of a string held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. zfp.jqb.etcr(58h3 9 9qplzu 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 o0pedw b( ncgs;:t 6v.m,d y5aof the following situations is the net force constantly zero on the oynemv5 :6gc. d(od0 s;bpwta,bject?

  13.28: An object is in free fall clo- pm: :cj 3vgreko2e0bse to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true about tcvj e23g:kmp-:0o erbhe 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 30 N, F2 of 50 N, o2u2ce3+: cuy: 8pffo ppz (yvand F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and F2y2:2p e 8ppf z3ouv+of:ycuc( is

  01.07: A force of 6 Newtons and a force of 10 newtcmqoy3 c ms,0*ons can be combine to form a resultant with a magnitude of which ofo0ym* ,mc3cq s the following

  10.06: Which of the following statements is most closely associated with Newtonso7o6j wtiqlu*-as9ajl54vf8;nhd+h,x j8l ’s Third Lawll d47sjxwj9;hj tl*58,o qa v8nsih+-ouaf6 of Motion?

  95.06: The reaction f z3+om nq rfz2ks +8 k.dtr.jyei:,qp0 m-ap1oorce does not cancel the action force because:

  14.14: A box rests on the floor oz m4;571m(vd b cahmzaf an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravh1(;a4 dzm m 5cvbm7zaitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constanbw5hxqg4) qf4:j2pab t speed. Which one of the followingg4a4fq5w xq p2)bj:h b choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is m zsr.q4o-t/vthrown by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the z os4/qvrm.t-ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the boo/uxk zd 6ofml1k v/f26k is a calculator, also at rest. Which one of the following choices is the Newton’s Third /o/ v 6x 61klumd2kfzfLaw 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 an exp bwdipsm18b5 vx/; kb1eriment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions ca8xbvm p;ib 1w1 dsb5/kn the students make?

  99.03: If the net force on an object were doubled whihv dd2s2f 6x b5z02kksle at the same time the mass of thesd26bv0dkkz 52x 2sf h object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from ref+.gzaa9sviqt32qqm1, ua *c gv+ .oust to a speed of 20 m/s in 10s. The magnitude of the net force acc1. +ciq. +oq 2vam3u, fvqt 9gaug*szaelerating the car is:

  99.05: A tractor-trailer truck is travelin9;ea;r5 5,ux ik dd(nwqaj-gug 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 ,nawj qud;-(5;ir e xk9uagd 5trailer applies on the tractor is

  99.16: Which of the following principles best e(l:u he7wy) eoxplains why large tractor-trailer trucks generally accelerate e:7 h(e yw)olumuch more slowly that automobiles?

  99.19: A 50 kilogram skater at reri*qz 41:kgwqst on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Whz kiq:g 4wr1q*ich statement describes the subsequent motion?

  00.13: An object near the surface of tnu btmn j8+z2*3mrl y ;)9npamhe earth with a weight of 100 newtons is accelerated mz )py8r3nm*n 9nu mtj+;b la2at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceleratc/i3+oz ipvu q:r *dz/3kjn6ged from rest by a constant force of 2400 N. What is diqj:33guv*6kco z/p/ z+ r inthe speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/siwfn p)f40n xtw3 /+oh slides across a rough horizontal floor befwft n)wo +3h4p/0if nxore coming 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 v .ijjnf s+0isr5ctf/;ib:0u belocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to r ;5us/fb.ijb:+jniirt00fs c est. The coefficient of friction is:

  09.21: A 20.0 kg box remains a xrivyhtt:a:r3r5ka )18i h+ ht rest 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 sur+rr5hr1a v yxh) tt3:k a8hi:iface 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 initiallv2vwo7w61e)-kcu r dty 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 the following choices best represents the coefficient of kinetic friction between the surface and the block?vkw27w )1vd6 rteo-uc

  00.21: A car of mass m slides across a patch of ic g.ngeuq5*fku/r 8g 5je 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 tirfug/ 5j.u5 n*eqg 8gkres 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 acronsw en1fo w;07ss a patch of ice 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;wf e01 osnnw7 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 the c1e nqdzr7q1k+( ha7kxar's brakes and skidding to a stop. How far would the car have skiddr1(a+hk xn77 dk zq1qeed if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefu c0t ;z61avfz abieq4)lly control each of the following devices. Which of these devices can cause an acceler) t iz04q6f;1veazbcaation in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket tjxbi0y- nd37with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the su 3idybt7-0njxrface of the Earth at takeoff?

  07.21: A box slides to the right across a hopb ji (;ax324ny4 wyyprizontal floor. A person called Ted exerts a force T to the right on the box. A person calle4(ipw yjypb 34 ;naxy2d 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 5qwqemj(g(i)f)f ar ; ncgp 7.three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start frorj 5e);awf(c 7qgfi) p(gn.mq m 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 below shows three roller coaster trag, uc; t 1lpllql.t4n.cks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the l1ulg;,.n lptl.q c 4tfinish.
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 rollei-zuqu vcr .+vq7.h 2qe1d o3qrcoaster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at..cque i- zo2+qv3u1hq7 vq rd point

  02.40: A box with a mass ow0x/tq ,s7fhm f 50 kg is dragged across the 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 requi st,h x/7qm0fwred 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 againsiu.qfk v2qyrfs l 1//8r2.i sct a wall by a 100 N force as show .rqs2c if. 2i8/ skyfqrv/l1un. Thecoefficient of kinetic friction is 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 horizontn- pu/m7fuc ltnq)i0k4t 39qr al 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. Whi4p 7n- qrqmnf tt0 /3lk)iuu9cch 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. :*k1z)cqmh/u jwd o-p Neither is moving. Which of the following statemokz qhd-:m/uc *)1pjwents concerning this situation is CORRECT?

  06.15: A crate of toys remainmdi :j h- 1ijw3hzsl.4hz)sv ,b/;hsxs 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 c)zhd:;1x hi s 4.j/s wbizlsmhjh v-,3rate’s increase in speedup the hill?