99.36: What happens tooxlhuj7ssf-4q 4m i+/ the inertia of an object when its velocity is doubled?

  02.14: An intrinsic propertlsgkx.o0yd ::c,p09 hpq f ,gty of matter is one that does not depend on the quantity of matter present. Which of the followih90yc: go.dq ,, tkg p0lspxf:ng properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surfa0v e7f44y zx8g zsm:j4kmw0 7on +cyagce of the Earth. Assume the Earth has mo4m8v4ayz+ns0 04:wxkycg efz7 7mjgass $5.98 \times 10^{24} \; kg$ 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 surfa,h0o vy*q3b ; gk-*kngrmf :hyce of the Earth. What is the magnivf;k-nkqm ,0 bg*o3h*g :yyhrtude of the gravitational 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 acceler u0xg-5 m.fnylation decreaymlf 0.xn5u g-ses?

  00.11: A certain particle uqp+j3-du+7v 36vzievvg h h1i, o3 kixndergoes erratic motion. At every point in its motion, the direction of v7,viozv vig j3h 6phxu1+ k+i-3qde3 the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a strikykk5cz0y+yfz8kg9 0hfi hm0+5 sxvtj2: ht+ng 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 following choices correctly identifies the Newton’s Third Lawhk g+kz5i0y0 2sc vf9t++:mfk y z5kh yh08jtx pair force to the force of the string on the block?

  07.18: In which one of the following situations is qxe5v /xcn0ur*h b a55t( ey/sthe net force constantly zero on thehes5vbtqx u5c/*y rn5a x/e0 ( object?

  13.28: An object is in free fall close to the ground. A peavlow ev v02.0rson intervenes and slows the object uniformly to rest. Which one of the following statements must be0l0woe.2v vv a 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 has three forces, F1 of 30 2h3 q0doarh2b N, F2 of 50 N, and F3 of 70 N, a2b2a0 rhd ho3qcting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons 8pktbep 8n8 g hy0w/q,and a force of 10 newtons can be combine to form a resultant with a magnitude of which of thn/ 8w k0qphp,y8getb 8e following

  10.06: Which of the followinguohc lsa9 diu/x;m /4+ statements is most closely associated with Newton’s Third Law of Mot ;u4d 9huo ca+im/l/sxion?

  95.06: The reaction force does not cancel the action force beca mdfh. hqeen sm);-*5buse:

  14.14: A box rests on the floor of an elevator. The elevator is acceatmnkyc04vy+ju8z.g + za6fs*w *jn9 lerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gtyn9scn+a+akg v 0z6* uj*fz.4jy8wm ravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward tha ok,ac4gj:3f-r-cse rough the air with constant speed. Which one of the following choices coa rokc4g-se:fc ,aj-3rrectly 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 cerya,.xx e5bz4se 1rh1hc 9* batterswings and hits the ball. Th ,1z5 .hee4sxra*ye bc x19rche magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a calcul yxkn:*.l ne- f;cak(qator, also at rest. Whx.e:qyk fk*nn-; c al(ich 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 in lab conducting an exr4 ky aj1sb9jktz-4zl7 5gf)r x)o7aqperiment related to Newton's Second Law. The collected dajaqsxj b47r 95f kz-gryl k)aot)7z1 4ta were 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 s ye5jq ye9:4hglp . 9ds54dvuwere doubled while at the same time the mass of the object was halved,then the acceleration ofy.ghyd5jv4:p9 45e9 e sl sudq the object is

  96.15: A car whose mass is 1500 kg8vlxgsm huyu,p6/* e3 is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force a,uh*3spy6ulv/ 8 e xmgccelerating the car is:

  99.05: A tractor-trailer truck is travelingkt hy1 p6v:czs8x63 *2nkskwr down the road. The mass of the trailer is 4 times the mass of the tractor. nrk*: k63w 8s kyszp1x26ctvhIf the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-tray 5.ry 4h8tykqe.e t y* cby25+eolza2iler trucks generally accelerate much more slowley+ 4y. 2ykrz5.bethy2 8yaoe q lct5*y that automobiles?

  99.19: A 50 kilogram skater at rest on a frictiok1/gh/:15z l-md9 nmtgwe jjfnless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which stag :j15d/ m hfw1t/m zegjnkl9-tement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight owp g(5//7s vrtj:gkxazi*i 4a f 100 newtons is avx a5ji :igw(*zrsp7//t g k4accelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerr,gxbhm3p e3t5, h gv6ated from rest by a constant force of 2400 N.3mhgrh5t, pv36x g,b e What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizontai*s9-x6jz y s*az . db*l8/v.iaqwqnol floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before comi/ y*9. z.x z q*abl-j6v nswsd*q8aioing to rest?

  95.38: A block with i3dwtq8wc1ho 1 ;.,lhr;nlou rnitial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of frictio r,81o r; tdw3u.1;olncwq hlhn is:

  09.21: A 20.0 kg box remains at rest on.8ma x4+/d2h: ,z awlc9gsdnt2e kwuu a horizontal surface while a person pushes +l8znws 4h,ac2.t2x ugwua:d/mde9kdirectly to the right on the box with a force of 60N. The coefficient 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/c3o t;lvuo25hf1ys e 0s accelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one ou1;y3c se0f 2vo olth5f the following choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides )6,hp+ xb7n7 nlr wfnxacross a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a 7 fx76bnwx,pnhn + rl)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 acr yteh:a:2 ;afvoss 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 betwv 2:fthae ya:;een 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 maxi bzys7( dxy)9y n0f9kes an emergency stop by slamming on the car's brake7yx9 )9f nyz sixb0y(ds and skidding to 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 carefully7f641hj3 szh sz7qrub control each of the following devices. Which of these devices can cause an acceleration in a m rs17zh3sfujz7qb4 h6oving 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 2clh/ fmdf;6eis 24000 newtons. About howcdmfl/ ;e6h f2 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 horizoniikil - 3us--gb*5s/i v7odgydo f, z,tal floor. A person called 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 oki5/,d-g,ibziuvdygl-s- 7 *o sf3iexerted on the box.

  02.27: The diagram below shows three rolf9gayz ,2j6( nt/4lfkjl uat9ler coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from9/j tla2fzn9(y,jfal4 6kt ug 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 equaz4d8 c d0xsdt+l length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and mo4dzt d+d0s8xc ves 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 frictionlesslyees91gyvmq u v- ;flyi; e;.y1 along the curved track from point A to point C under the influence of gr1fgvqm- ;ey.y91eiey ;;vlusavity. What would be the direction of the cart's acceleration at point

  02.40: A box with a qrc3g/mdhf ec0i 8/d.mass of 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 required to move the crate at a constant speed of 20 m/s as s 0egm.d rd iq/c83cfh/hown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall b7c qi+ 2h o6vu8/y+afkf pt9xby 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 hv78caq bxy+f tup6/f92o +ik after a time of 1 second?

  05.10: A homeowner pushes t )s 5hr(goe*uklh3 q(fzf9y5 a lawn mower across 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 folloe hu5l(orz3fsfy 9 )k5tqg(*h wing relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neitk:qqhx wm hrfzr;3c qg,;n3.9h +4vncher is moving. Which of the following statements concerning this situation m;+v:qwqh.n3,hqcn3 ;9h4zg r fxkc r is CORRECT?

  06.15: A crate of toys remains at rt24cfl( ig39tm(m xths,z +tp est on a sleigh as the sleigh is pulled up a hill with an increasing s 2,scg+h(t9 x mmtifz4tt(3plpeed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?