99.36: What happens to the inertia of an object when its velocity is dou2bf-m7 r tonf-:xrv5 1zlpi /ubled?

  02.14: An intrinsic pro1akw8v)j u*zv*d iicv9k, r0 xperty of matter is one that does not depend on the quantity of matter present. Which o*v) uravjx zd,1* ikwk8 0ic9vf the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests o- hrxif:2rb q2n the surface of the Earth. Assume the Earth has mass r-:2r bxqf 2hi $5.98 \times 10^{24} \; kg$ 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 Earthb; x*cb8e/od e. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth mas;cb ex*8/e obds is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase w;*e.c:hmg d0y s)lvs g eswh-u4:0aekhile its acceleration decreasc:ymasudg wshsh 0:e*g-)ev . l0ke;4es?

  00.11: A certain particle undergoes erratic motion. At every point in its motio zduc..fjj2gzv ;d( (vn, the direct.(z fj 2.u;ddgvz( cjvion of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the kskj) 2 q;4y5 xa(tbfwend of a string held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the ffk as) ky5j;qb2w(t4xollowing 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 siq avxrf2bp kz,; i/.u)tuations is the net force constantly zero on the fvbki;xz.ur2)a q,p/ object?

  13.28: An object is in free fall clos wz,utt.o:;u d+4ew8 7yhe2vldf8 pnme to the ground. A person intervenes and slows tnt ;.ozyeh28wwmu: 7eu d+t8,lp fv4dhe 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 magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium;gz a0 -s8bfrm has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnit0af;-g sr8zbm ude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtomgsf 1 ia51)ks9g.xbsns and a force of 10 newtons can be combine to form a resultas95) 1msk1agxif .gb snt with a magnitude of which of the following

  10.06: Which of the following statements is most closely assgwpbv ; mj**q/b e 7z*rnn0uxr++fm ,cociated with Newton’s Third L m+pjb wnb*mux*c/7gqf,z;+ * re nr0vaw of Motion?

  95.06: The reaction force does not cancel the action force becauscf8yc f.w 94fvmnc5h6 e:

  14.14: A box rests on the floor of an elevatocju,qok(0 kxq3e:- kjgg8+e cr. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pakcj(qe k3gu:,k q0+cj- 8goxeir force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant sp)t8vc ekpo(th- 9- i8o aqqd:zeed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver(i: q ho8 tov8d9-a-k)tqzpe c during the fall?

  06.08: A baseball is thrown by a pitcher with2 zr *t/rr6xap a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exa *r6r2rx tz/perts on the bat is always

  11.13: A physics book sits at rest o bk8u/5e v cj3ewj;1frn 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 forcrcj /uwf5j;vb1e83eke that the table exerts on the book?

  05.06: The students in a Physics I class were in lab c8p 5+ oc/h:8w.s ptwd(9g u1ewwthkctonducting an experiment related to Newton's Second Law. The collected data wgtkc9 uhtohpdw5t:1(e. w+ wsp 8/8 cwere 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 n,2z5pttjx2 +elneixd0g ji3 d.ok(9 the same time the mass of the object was halved,then the accd,nt l ngj2p9 x0ikz.e+x2ioe5d3 (tjeleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly fr5clf;r 2.0b4 eakrti dom rest to a speed of 20 m/s in 10s. The magnituatb0rke.52l rd;if4 c de of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling(so8a,l.aiaq w ;ywn 8 down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor acceleraa lsao .y(;w88 i,wanqtes forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles bestp b wnp.8ldcmdpgkow(d 8 (jk)q1 ;v36 explains why large tractor-trailer trucks generally accelerate much more slowly that autv)6b j(p8lw1nw 83( ;po cmdpgkddqk.omobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink yadc/5bsib;4 9:qwgwtz .+*ujo5 asothrows a 2 kilogram ball, giving the ball a velocity of 10.0 m/sb. s; *og+ ai:q s5 /adbz59wtuowjyc4. Which statement describes the subsequent motion?

  00.13: An object near the surface of the e( ifujo+vbvy w (iic0w11;8 xdarth with a weight of 100 newtons is acceleratedw+ivy;1xdv0j (f i8cob ui1(w at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 krp7.4sehae)3 cn8yr p g is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after begia.4cr3ersnp h)e7yp 8nning?

  98.32: A 3.0-kg block with glk6j/g:bgb2 wq.:ypvs/e:s initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force/.jbggk/62ywse :: v l q:gbps 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 *bb xw rtp 2q9z1(lc()kgl;xu slides 8.0 m across a rough horizontal floor before coming to rest. The coeffi l1up(xz2rgb 9*qk bw )lctx(;cient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a perskunz n7et4ku8 ac5w3 7fn n/w l.*u vz-uzv+;pon pushes directly to the right on the box with a force of 60N. The ct7v uen/ u 4 ;ac 5lp+7-uk*nnkzuv3z.f zn8wwoefficient 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 uniformly to rest on a h apnd7zv(uw-;a wpn,+orizontal surface. The block travels a distance of 12.0 m during the slide. Which one (v wa7 zw-; dp,unan+pof 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 -n/0ef begx g,speed v with its brakes lockedbeg,en-0/ f gx. It then 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 itml *snzu*j94c yz1oh4 s brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and th y4hsmc*zzu1*ln 4oj9e 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 slammi feft z1wf0i 8/fe ,+iv:.wvyzng on the car's brakes and skidding e8w.ff :y ,ztzef1 vv/+f0w iito a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the followex:jxljlz 38jmv/41a ing devices. Which of these devices can cause an accelejxlj zj/:4vx1 83maleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket wiynkmp4i;:k aew :a5mr yv3f07th a weight of 15000 newtons is 24000 newtons. Akk:f ir37m;0ep vaw5mny4:y a bout how much time 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 the right across a horizontal floor. A person calledn-g8 br3 dty8koet b:n:oj: )d ukrp+3 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)tdonykg3 kr+:-j pto83rue :n8bdb : sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal length. Ascc8 91q kk4yzf 9keq-ssume that on all tracks the roller coaster carts start frqyk4k 8-kf9cc 19s qezom 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 tracks of (i. (l5e g, ndvl1qahflgnr 5.equal length. Assume that on all t( hll dgnrl5,aqfv..n 1(5ige racks 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 frictionlessly along the c )5.umyc4r6ym9 xy olaurved track from point A to point C under the influence of gra6ly.ormm uy cy)4a59x vity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 sqh,m5zs2vco9 ,rra*.ub(yu ; o 7fbi 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 th z5sa,.*97bh fms ybuiu vc(r;oqr2o,e 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 .dadsu 42rzc:sh2 856qw sphz 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 the block after a time of 1 zca:s.8pd s 6su2w4drh5 hq2 zsecond?

  05.10: A homeowner pushes a lawn mower across a horaxjcy7 x92z7rizontal 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 frj 2ca7 zx9yx7orce magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is movn1ng d lpy87m:8nkpn 4ing. Which of the following statements concerning this situation nm7g8d8 nnknl14pp:y is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh aaosm(rt22*6i u ixtb(fdd/d * s 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 increase in speed udti*2d2arstb xd /(mfi* (o6up the hill?