99.36: What happens to the inertia of an object when its velocity u,zwe+l,*/ qx*bng.qd 8oor vis doubled?

  02.14: An intrinsic property of matter is one that does not depend oep*2lu )/(2uh3- vhk krigskon the quantity o(us h/ kog ev)k-iup3l22r*khf matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surfacv m6 5h(zucrasu)ws5 g g eu)1;x7odc.e of the Earth. Assume the Earth has mass ugae)vcs)u 15h7wmz (o6 sd;c u. 5rxg$5.98 \times 10^{24} \; kg$ 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 o.e ro8vqf.xz :f the Earth. What is the magnitude of the gravvo .re:q.f8x zitational 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 accel .9:dzlmu grz)eration decreases). :m rlguzdz9?

  00.11: A certain particle undergoes erratic motion. At every poi6f;cud ztp 2:lj9,zs nnt in its motion, the direction of the particle’s monz:cpd 9 6s lfu;,t2zjmentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a al1yh, pu sf5hdpa0x2 lb-8(eperson. 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 Law pair force to the fol dhab2u a ex1(fp-85l hsy,0prce of the string on the block?

  07.18: In which one of the following situatiom cyihgr-lnxgz fuv3 *8-7-e 6xg5 4kons is the net force constantly zero on th8lx fc- 5n6ygu*vo -xrm3zikge7-gh4e object?

  13.28: An object is in free fall closuepfpr;2/mf 1k, ea)ue to the ground. A person intervenes and slows the 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 obj me)pupa2uf /k,1erf;ect’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium y a8tjsff+8 j*has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting jt*j8 aff8 +syon it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons mvsb2 -k hz/y1and a force of 10 newtons can be combine to form a resultant with a magnitude of which of b z2y hsk/v1-mthe following

  10.06: Which of the following statements is most closely associated 4kta5oat2lkfr8 gyvs ; b0 fyqb1q03.with Newton’s Thq0.1btrfks lkfay0a q y o8t5 ;g2v3b4ird Law of Motion?

  95.06: The reaction force does not cancel the ac*6o rzgqufsg;842ilg tion force because:

  14.14: A box rests on the floor of an elevat 8/ o0.6mdk ll::zf/nl ziyalxor. The elevator 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 bl:km8/zxz l :y6.llid0 /faonox by the Earth?

  15.15: A skydiver falls downward through the air with constant sp j /p/5 mcefzf*:/tqoceed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the *o:/q pc et/fmc zj5f/fall?

  06.08: A baseball is thrownk m:9kbuf5( -qqs5rxn d(2kqnc0wn w5 by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the forcefx(nmu5wk- 20 nqds 5:k 5cn brq9kq(w that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of themqdco pq-o997 mn o9(i book is a calculator, al 9qq(o-mi799 nopodc mso at rest. Which 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 Ivqd0re *ww v4k91wmm3-z f5(4d uttch class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the stufwrk34tvm *t(1cz whqved 4u5-wd0 9mdents make?

  99.03: If the net force on an object were doubled while at the same timmej*o 5 mj3 .ym+xxf+1x qu14g6fahqne the mass of the object was halved,t*j +5q+n1.3xm1fx gjhoufy4x eqm6mahen the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest tomqiqiy3ofu- s:01p up k-v14x a speed of 20 m/s in 10s. The magnitude of the net force accelerating the :s v1i - mpx- 410uquokpqfiy3car is:

  99.05: A tractor-trailer truck is traveling down the road.9om)- o3dkwu m The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force thatmo9wd 3k-omu) the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractoy5xc6oa 4shohh4jk+ wlcu :22r-trailer trucks generally accelerate much mork:ocl s2hwjy2446h5c xa +u hoe slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a fri4+)m uvr uah pu -nzmiq+g+f+/ctionless rink throws a 2 kilogram ball, g m- u ap+ /u+)uvh4zrqni++mfgiving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near thkq13/ 7 au.jn3zxbazbe surface of the earth with a weight of 100 newtons is aznq 3 zabku3/j xa7.1bccelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a c. qu-5yh lnt03eu nfhot5:4fnonstant force of 2400 N. What is the speed of the car 8.0 s after beginning? 5tnoun0u53f4-thf nlyq :e h.

  98.32: A 3.0-kg block with initial speed 4syapc* .a h8l2.0 m/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 tocly psa.*8ha 2 rest?

  95.38: A block with initial velocity 4.0 3b4nvof k n,hhx0ehu37t -o9wm/s slides 8.0 m across a rough horizontal floor beforehwvho nh7-nfk9,04ot3u3eb x coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains a n032tz,osw det rest on a horizontal surface while a person pushes directly to the rigt s dwz3o2,0neht 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 unig6m qg p7e0in9; slaplr/icx;qp584k k2a4 hiformly to rest on a horizo c8h4;i a9ieglpsi q5 ga7l /mrn4k0 pqp6x;k2ntal 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?

  00.21: A car of mass m slides across a patch of ice at a speed v wi+gl92m;i;yg e a:ldzmr d5n eu 7:i1onth its brakes locked. 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:rildugnim9oe2 e;l g; m zn:1y7da5+ μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides acrossm6jby ;ob(fom 1w(n v/ 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 frictim1o obw jfmvn;y((6b/on 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 srkc.7e9 mv7 jnx(m)nt top by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twtxrve7nck j9 )n.m(m7ice as fast?

  99.39: The driver of an automobile must car.swn ,y45s1hsav ,hs- m vp oe hcy/8/+vwy3bsefully control each of the following devices. Which of these devices can cause an accele / +psy,yhv-vo/hcw8 ev h5,snasws 4y s.13bmration 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 is 2400rx9v aii t w1(kc-pg000 newtons. About how much time is neede a(i0 x tv01pkiw-9rgcd 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 horizkb/1: x ri6dfiontal floor. A person called Ted exerts a force T to the right on the box. A person cal rk/1 xif6idb:led 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 three roller coaster tracks of equal len1roigyor q7(-gth. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the finish.7goq yoir- r1(
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 c ;7r9c3 b7cn9(oa x4dkp ryrjof equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracksp;kr rocc9nrc 773( a9x 4dyjb 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 th4ab5)obo6w mmv h)mk3 e curved track from point A to point C under the influence of gravity. What would be the directionh5 3maombk4ow) b v6)m of the cart's acceleration at point

  02.40: A box with a mastz.ov*h j88b qfn(p: q yia*-os 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 coefficienj8q * fanp(8 oqho:vt.yi*bz-t 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 at8rz2nk tg2 7zer,rf/p rest is pushed against a wall by a 100 N force as shown. Thecoeffiz2n/r,fk e rp82tg7r zcient 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 ach 8x-xwqi5fm *(0tg)a gvb th5ross 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 qg(ht 8-xmfvwt) b hx*0 5aig5the 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. Neither is moving 6 *zi2snwsoq b0ai o5/8/cfts. Which of the fs o ib assf*5i 6wqnz08t/c2o/ollowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as t))6y.lfb0hdyhmcys ; he sleigh is pulled up a hill with an increasing speed. The crate is notc ylsm)d.;y0b )hhfy6 fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?