99.36: What happens to the inertia of an object when *od7.m4ujubs-m 50f7v b0wiekc.dh y its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on thciiejrpq z/ 5;k01s ;fe quantity of matter present. Which of the following properties i ;qc/pzfej i0s5 kr;1is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Ez1 wu i9,obqdr:i2wy6d a+v 7narth has mass wd7 v+ nir:6aywui2q ,zob9d1 $5.98 \times 10^{24} \; kg$ 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 nearxudee4j a*.8 i the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earx84 aeidje .u*th mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its a,y itg0bb8c vyl*kb24*dmq z)dsv 4+kcceleration decre+ymk8bvl0b4 kd)v z,i2 *d c4*ybtqg sases?

  00.11: A certain partv/y16ajw1k f ricle undergoes erratic motion. At every point in its motion, the direction of the particle’s momenturf16/kv y jaw1m is ALWAYS

  17.14: A block is suspended in the air at the e42i l ,f0qzqp hcvhb0,nd 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 fq v4 lh0p,hbcfz i,2q0ollowing 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 sit*wcg6qe7z z gj *gz6d*uations is the net force constantly zero on the object?jzq 6*dgceg**6gz7zw

  13.28: An object is in free fall close to the ground. A person i 8f6vi-jq+ mbb hcn*k-d lh/2fntervenes and slows the object uniformly to rest. Whickmvd- 6c8 +/nlifbf-j*h2q b hh 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 has three forces, F1 of p/3o.th;wpzw/*o p cs6gu2e t30 N, F2 of 50 N, and F3 of 70 o*u/ wowgzt./t pc;32psehp6N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to fip-hh2jun sja -/v r/+orm a resultant with a magnitude of which of the followinh/js h- v/j2ui+prn a-g

  10.06: Which of the following statements is most closely associated with Newd:jdz2 4(8 qz p:g5mrhaeq9w)y; ykzq ton’s Third Law of M 2m;ywpzh(r :8ead dkjyq5qzz4q9 g):otion?

  95.06: The reaction force doe+h ydj0x5p6k us not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The g,(nzhm:0)p +ri pmt eelevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on the b()n:prie gz htmm+,0pox by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Whsztx (8yfn+v3 ich one of the followins8+nvxf3z y t(g 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 thrown by a pitcher wilms, b23 fvg-l7 )lkmnth a speed of 35 m/s. The batterswings and hits the ball. The magnitude of thlf ,2 sv)- mknmlb7l3ge force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table 2b2zqe 0xi1yi/6husn. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Lawy e/ix6uz2bsihq n01 2 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,xvu,c zbdo3v 73 d*uperiment related to Newton's Sec up,* du,bd z7cxo3v3vond Law. The collected data 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 were doubled while aa3z8(cm yorh3 t the same time the mass of 38c a h3(myozrthe object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1fr:50eg ,hx/o l,ia ky500 kg is accelerated uniformly from rest to a speed of 20 m/s lf:re y ia50,,ok/xhg in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the traiz8osmht/ik7e2j94cn xyf+ d)ler is 4z)h/ xfn+ 2i tck48sdeoymj79 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the follow/ )t8x;x:uq,jk ptucuing principles best explains why large tractor-trailer trucks genuxqut) x ; u,jtk8pc:/erally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest 2qi/g-hbb3xft3pu9+qxaq 4b m 0z/po on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequen4z+t q h3qboxb2ux0-pgbiq39//apfmt motion?

  00.13: An object near the sumrl3tq m0u 8nv5 va( n;rf78jckdk(w du*v2d5rface of the earth with a weight of 100 newtons is accelera5 (dadj;r*8kuvc vnt mf2uk 0lw (578rmq3v ndted at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated fwb4h*7j( gt+xd1j6 zpjedo3o rom rest by a constant force of 2400 N. What is the speed of the car 8.0 s 6do7z(wjtjx3jego+p1h b* 4d after beginning?

  98.32: A 3.0-kg block wn we )k(g,s+x/0 mms33l4gifpq6tdx:(b qoklith initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting oxq3ng:s(gf0iwdt,k 6( xmmbel slk +p3qo4)/n 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 horizonzv*f9 e/ hs2r twxm 40y3vrqx 1-ekd0dtal floor before coming to rest. The coefficient of fric 4d kd/e9vy13*x-hmqr 0 2t0vr eszfxwtion is:

  09.21: A 20.0 kg box remains at rest on a uu3jzr: 8nou/ap4*e z h :gc5fhorizontal surface while a person pushes pjgr/ce4*: hzu:on5u3a uzf8 directly 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/s accelerates uniformly to rest on a hori)c2 vfy2n8my szontal surface. The block travels a distance of s)c m28yvn 2fy12.0 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 j 6x; i 5dequqbyf9q,5of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefu ,fx5d 65qe bq9iqyj;ficient 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 ic9b3fmcysaj7x dvyk- i/x q4+ 9e 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 betx f7m qyacj+9b vyxs-kid4/93ween 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 emergenn:5uz/jyfz it 8u-fn 7cy stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twiuj-/8ft5 i7z u f:nznyce as fast?

  99.39: The driver of 2)ek91lov rujan automobile must carefully control each of the following devices. Which of the2 elukjvr1) 9ose 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 newtons is01 dya6oay q2i 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the 2ayadqy16 i0oEarth at takeoff?

  07.21: A box slides to the x2m/z3vbj 1w(r v -wkrright across a horizontal 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 sizv(w3b j w1z2-r/xrm vkes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal lsvf,r a)xcw e( ,/ 5w:hbgg6.+ bqtybdength. Assume that on all tracks the roller coaster carts start from rest at the x sqwb+g h5g y:f)e,br ,b v/dcwa(t6.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 eqbg5 pkv)a/;yzual length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to ) kbv;5ya/pgzthe 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 curvey vk81f w649mqv*te cyd track from point A to point C under the influence of gravity. What would be the d4 vv9yc6y* m w1etk8qfirection of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dr(jm t)z0uqtk zg l2j1qhb(9z 1 7tw9gtagged 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 newto)t(q(z7 19k92zjzggbuw h lt0qj t1tm n 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 bloc ( 7l/3qad yxe:u:(gmit/ f/hreoiyq2k initially at 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 frictih /(m3yq etlaidq :/xgeu ry: (7o/f2ion acting on the block after a time of 1 second?

  05.10: A homeowner pus*w m3jvo 346pzl 6ywfb/l t-yr4p9rughes a lawn mower across a horizontal patch of grass with a constant speed by apply 3p tpl 4wgju-o6y439bmvy6l frz/*w ring 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 magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. h1r 1fw6e 0a)rh tc3hnNeither is moving. Which of the following statements concerning this situation ih h a1r3hw1cnfr e06t)s CORRECT?

  06.15: A crate of toys remains 4qc,kil51i( wcaw6*ep al7pj at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. lw* wq,lpp(ij16kac7e ic4a 5The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?