99.36: What happens to the inerti6ip 2dtol i1lj)z7 pz)a of an object when its velocity is doubled?

  02.14: An intrinsic property x9.ha-iuxi6 8: 71kg2mf2wx m htqwucof matter is one that does not depend on the quantity of matter present. Which of the following properties is Ni.i2f-1 x 8 u:x mh7gw wkxqm29htcau6OT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth has mfb* ljtz zkd9iw1ln,n*+ pljyir) : /0k 0nf,bass p/w lz* t*l9i,0lb1f yj,k0)nzfjrn :k+inbd $5.98 \times 10^{24} \; kg$ 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 fats-v) )v-sg6zrmifv-a0 8 c boll near the surface of the Earth. What is the magnitude o 0)vgvrimtfvc s-b- )o 8s-za6f 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 accele d5z:)0qjy6yt r 5 ponftovz-;ration d)y jn:yro fodv;0t- z6 pqt5z5ecreases?

  00.11: A certain particle undergoes erratic motion. At every point in its motl(q5 pch 6hf 85y6 tykir(e0thion, the direction of the ptl8tpc(i 0yfrhq565 eh6y h(karticle’s momentum is ALWAYS

  17.14: A block is suspended in the air at b 2vvqfqg*4ao79z,x p the end of a string held by a person. The person pulls on the string uniformly accelerating the block upward for a shorvzp vqa o ,7q429bgf*xt time. During this time, which 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 the following situations is the net force bju7 qx.324rjk. t()csyo +zk 8cevmnconstantly zero on the x sco4.+ve(yztb2kjmck j3rn.7 q 8u) object?

  13.28: An object is in free fall close to the ground. Awyy /wuqn*-gy0lt23 x person intervenes and slows the object uniformly to rest. Whi-qug3y0 y/xnw* yt2 lwch 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 equilibriu x1:vb cy 6cxln.3bs(-wlg*uim has three forces, F1 of 30 N, F2 of 50 N, and F3sxcwv1bg( clx6.3 b :ulyn*i - of 70 N, 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.s i :/gznt j3mavx)u1 can be combine to form a resultant with a magnitude of which of the followi v1:si/)3x tujmg na.zng

  10.06: Which of the following statements is most closel(jbcu9gq6x 7p y associated with Newton’s Third Lawp(x6g 9jqubc7 of Motion?

  95.06: The reaction force does not cancel the action force becau8 qgmb+7+9b 1aw3 eg (rdabetose:

  14.14: A box rests on the floor of an elevator.q bg) ;69bfwoc1dd,evmgs38h The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force actinh g,ce dwg9b1d83; vfbqms o6)g on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speedp-l6ow63 /baw3s xgsn . Which one of t63o /-3a6nxwgpbws slhe following 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 with a speed of 35 mtm(ch1)t (h,gftlc ok,fs5 i*/s. The batterswings ani15ht*cc,f,ohf gt)( lsktm( d hits the ball. The 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 ivi+*vnmc/ f vz4s8h1is a calculator, also at rest. Which one of the following choices v /1z* vcv8+hni smi4fis the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students ib 1i.3q/ cfezqld7s (wn a Physics I 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 conclef 1zdi.l/w7b(q3csq usions can the students make?

  99.03: If the net force on an object were doubled while at the samyuhwtys; t(.2e time the mass of the object was halved,then the accy .s;yh(uw 2tteleration of the object is

  96.15: A car whose mass is 1500 kg is accelerat* jh)*f*,aqqbb zjp2wed uniformly from rest to a speed ofa bb **hp2)wf* z,qqjj 20 m/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer h.43-cwa bwcz2x0e krtruck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. Iz2wk4 c03.ecwhabx -rf the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following)jw (cg v,+vx4)edqtccng2 8x principles best explains why large tractor-trailer trucks generally accelvgj) tc 8vgw),ncd(ex+ cx2q4erate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws agyx 38 y( m- jkhylng63(zcnf6 2 kilogram ball, giving the ball a velocity yf( (x6lnzkjc-ymyh3g3n86 g of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 8w 05osm(x xz9gy-gzt newtons is accelerated ao(-g y 8gsmz5x 0tzx9wt $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceler6)a+z*kbk ie 98cksnh ated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s aft a9+k*8z6)chebnskik er beginning?

  98.32: A 3.0-kg block with initial8.ctszq6w o+*yug1qs speed 4.0 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 w* qqygt sc8s1.oz6u+does the block slide before coming to rest?

  95.38: A block with initial velochdauo 82b z-l k 13qib2qmc:, s-rnr fs0;sw:uity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient rla2- b:u ms1-f; ,hb8u0sso:iqd rcz2 nk3wqof friction is:

  09.21: A 20.0 kg box remai.gwld h4y.z3vns at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The cd.z3 4wgv.ylhoefficient 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 initiall*0dz tosm) c4wy moving at 8 m/s accelerates uniformly to rest on a horizontal 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 bs)zwoc mt d04*etween the surface and the block?

  00.21: A car of mass m slides a):rri (vt*wddfa6q c fw:4j h0cross 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 betwee :d 0w4j 6t:(drwhrfcfiq)*a vn 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 ab)) y6ljto/a l speed v with its brakes locked. It then ht)a 6/lyj b)olits 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 speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emergency stop by slamming on the carbfe717ss h r2y's brakes and skidding to a stop. How far wsy7fb 7seh1r2ould 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 2to u9f/o kns : 1tn0*nr4)*gafvbwkwfollowing devices. Which of these devicesg21: nn0 kk f*t)so*4r9nb v uwa/twof 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 newtontd*g+p * b. 5jlony;pxo1s2eglx5l x/s is 24000 newtons. About how much time is needen*p sel xjxdl5b2;g1x o/ly+. g5o*p td 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 hooxm8-f: wd+wdx ., kwkrizontal 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 acce8 kdoww. x,xd+kfm:w- lerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks ogfyjiu8p*9)s3 y yzv-6d pw4ef equal length. Assume - dvy6) uifwe3 ys*pjzp49yg8 that on all tracks 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 be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coaster trac72 ncckavzv*g ; w5v2rks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the fini 25n*zrav vk7;cv2c wgsh.
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 b vj2 h hn1rk8a6zl8;g4b c,ohcartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of8zl1a8 46 ;hb,okjh2gc nrbh v the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across tycsfkn35 l g4 y(ad*k7wxa/ 5fr se9u0he 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 shown in the diagr7x 9/e5y 4rk gal0c3u5ks*fya(nd w fsam?

  04.40: A 6.0 kg block initially at rest is pushed against a2;wbpyazb-ql4bqlc9 x )n5f il nl ))5 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 qpb)l9b ill z x;l 5nf)bq452wca-)ynfriction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawnkntiu y1k)/qflp0;e0nog)v ih*.b z * 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 m;i.v ut) g )fq en1*kz0*ok0yplh/bni agnitudes 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. Neither is movie 54(uc6ljngmq*3udy ng. Which of the following statements c ge muyl4(n5cd*3uq6joncerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh iz3d smf)s 9r.j+94o uwfgc 8pns pulled up a hill 9wpzcns9j)f83um+ f rg4 o.sdwith an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?