99.36: What happens to the inertia of an obje))xm ttwgq ,:vt) :s g-ftnma9ct when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not d+w rn h*nz7az7s0f 5ddepend on the quantity of mattern n 7rhfd+wad7*z 5s0z present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg bouldef *n c-6dg ncg0crz9l:r rests on the surface of the Earth. Assume the Earth has m *dc9gl 6z-:r fc0cgnnass $5.98 \times 10^{24} \; kg$ 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 + +tossuq)duy susa 92xv.v:/fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by thv++xs2v:u/s ou uq 9t aysds.)e sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase wf zt-a 83,qbrehile its acceleration decreas,q 3t aebz8r-fes?

  00.11: A certain particle undergoes errcq/lje 4 -*fciatic motion. At every point in its motion, the direction of the plc/cj-*4 eqf iarticle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a vl4k,h6vc whfy(f,)h string held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, wh4,)hfcw khvf,y (6lhv ich 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 of 1eyv3ax rn0j6 the following situations is the net force constantly zero oy 0jr36x van1en the object?

  13.28: An object is in free f jav m)e. pqwbj2rq+7(0v,*u a fln-*bfodo9 qall close to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following sta7w*- qd omv,0u.q e+ b2*f pjf) rlaj(obqnav9tements 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 forcesg5 7na niiw.9z, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The iz.n w759n gaimagnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Neszr 3 k(hudk68j -uhaleq14)owtons and a force of 10 newtons can be combine to form a resultant-4q arlz 3()eo kd6ushjhu8k 1 with a magnitude of which of the following

  10.06: Which of the following statements is most closely associatekac.3t *3ll gj,nqv6 .1qxh5 wll7qned with Newton’s Third Law of Motion?nlg61wqelvnl j7h .t qxal53. *k3,q c

  95.06: The reaction force does not cancel za2q9 i/vdwyob hp750the action force because:

  14.14: A box rests on the floor of an elevatol 0 qdg;t2 ab.:-obz,x6rkm der. The elevator is accelerating upward.6dbl- rt 0 b2ok: xdamq;,egz. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through thp+ k d a;dx: kdqq u2i7zh1f+(jours1+e air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to 2r:f qdkd+suq7u + oiha1k1xp d(+;zjthe air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by at.f4 /hgq n4tz9kxb3lw k 4 8y;wkvd/w pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force thayb49.wl 3 kqk dvn/wg8zkw4/ ; txtf4ht the ball exerts on the bat is always

  11.13: A physics book sits at relv3,oop ,z obp84l d*bp2mc8ist on a table. On top of the book is a calculator, also at rest. *m, l,dppbvooil4 cz3bo8p82 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 I class were in lab conducting an experiment r qbjt. yev8zev+go. 3;elated to Newton's Second Law. The 8og e+q.vvtj 3.eyzb;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 vr,- e clkuq*/o b/;xydoubled while at the same time the mass of the object was halved,then the acceleration of the object is-br k *c/y,/e qlvox;u

  96.15: A car whose mass is 1500 / ad4chofm* )pkg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnd4 )fohca */mpitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the trail2 :8qxsor5st2e l4hqk er is 4 times the mass of the tractor. If the tractor accelerates forward, the force tl 8h2tqkse :rq25so 4xhat the trailer applies on the tractor is

  99.16: Which of the following przzb4l6* ots -fyq hm/(4in 6i,fw:ecginciples best explains why large tractor-trailer trucks generally accelerate much more z iml 64f nih4q*sobce :/-yfg,zw( t6slowly that automobiles?

  99.19: A 50 kilogram skater at reemb))(pm9knk3xf-8 qij v1kv 6l -bx mst on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the su8k1j bf kv-kbx9))vmemxm6pl3 i-nq (bsequent motion?

  00.13: An object near the surf*93cq- 6 js t.ju3-bhrnicitj ace of the earth with a weight of 100 newtons is accelerated -sr -u93 *hbi3jqtjj6.c ictnat $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constant force z2nbi(yf3 m 8fof 2400 N. What is the speed of the car 8.0n b mf3i8y2(zf s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizont:okzpz *(er2 .ppv:u mal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before cominmu.p e( zor :pk2zp:v*g to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m qvc2f0z *q);n8scblfacross a rough horizontal floor bzs vcf)c 8f0*blqq;n2 efore coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box,qyn 4sbznh, ) remains at rest on a horizontal surface while a person pushes direcynq, n bh)zs4,tly 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 hor,brnj+,r)8 :let nc *xmsyz-wizontal 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?) j8,bryrsz,mnl :wn x tc+-e*

  00.21: A car of mass m slides across a patch of ice at a speed v with its b6tf1jbw djr3/f9 qpjcux(qe.c +(ay/ rakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of ki/cw r +x y.1c fbpj(6q3df(9ae/jjqut netic 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 its brakem(x gdw d*,,ay-ps u8ws locked. It then hits dry pavement and skids todu *am8,x-w(,dg ywps a stop in a distanced. The coefficient of kinetic friction 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 stop by slamh5,0 - 0sraizhfpo-kfming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice as fas ksa5f oh0zr -,hif-p0t?

  99.39: The driver of an automobile must carefully control each ofdt6sid+* 4 :4eg7ak 6dwqjmk o the following devices. Which of these devices can causes* 7dg 4 wka+4d6qo:mti j6kde 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 withg)ua. /,9htjo rp lcp7 a weight of 15000 newtons is 24000 newtons. About how mc ,t/)lh9a up7j rg.opuch 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 horizontf mwk,;5zwa-hn0n , rwal 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 halfzn, wn-w0; mrwakh5f , 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 : obbevw85-lw equal length. Assume that on all tracks the roller coaster carts start from rest at vlw -5o8b :wbethe 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 coasl+5br xbt+l8fs v;k*d0mpv :fmuw 24(x.mauqter tracks of equal length. Assume that on all tracks tlmu*x :f2 ps;4w + 5fu(m+kbdx8 tl.qmbvvra 0he 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 tb8 u8 p8z*djr j oml:9xfoq8:24fmfg nhe curved track from point A to point C under the influence of gravity. What wo umn*zf blr:j:mo9d8488 jffq gx8po2uld be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across/aqlc6 rjc.c5 the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be clos ./6cj5l qcrcaest 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 shown in the diagram?

  04.40: A 6.0 kg block initiallm .ba.x6/ti nr 7(eorre*a :wgy 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 friction ar 7.t: erx (ionba m*/gre.6wacting on the block after a time of 1 second?

  05.10: A homeowner pushkmfk17rga2r -tu(zhk37)l du es 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 varif3a-rd)z71(hmkur k7ukt 2lg ous 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 aq ffk9x,:zxnddd3gqjv- 6k9 ( table. Neither is moving. Which of the following statements concerning th,f xd( 6qnk:zk 9xd9fgdq3- jvis situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as thehbw yf k6q,x361x dad8 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 dhxy6fq6w8,1 xk b 3adincrease in speedup the hill?