99.36: What happens to ksa.,l ;x ts:hthe inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter isx 9 w.j,i*ythxf1p5f x one that does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic property9jyh5p wxi ,1xtf.fx*?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Ea1w27x d9nyy33g bh7 :ys gmybjrth has maj 3yd g y3byg7s:xb1y9nwh2m7ss $5.98 \times 10^{24} \; kg$ 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 of* f1fo(3stcbygg1v d zfk-1-ejjh7 +a the Earth. What is the magnitude of the gravitational force acting on the earth by t1 -gst (h eyvc dkfjba1fo1-*fz+gj73he 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 accez11vxdv: 7azaleration dec1 xz:71vaazvd reases?

  00.11: A certain particle undergoes erratic0wg7oxb fuwo2hs6g 4) motion. At every point in its motion, the direction of the particle’sw0g7sou)of g4 bxh2 6w momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held *elrb, xi5xnd7 jjno 2y,dw3,zv8w2v by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of tjv b82, wvzedxl yji5nro7,3*w,d nx2he 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 follbxk6dohxcd 8 1o voy,/dps -88owing situations is the net force constantly zero on c8-8vph8 y,1oox6dxsdd k / bothe object?

  13.28: An object is in free fall close to the grof;y;q/ kuex99k adm 5ound. 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 fo9 my;uk qd;x 5kae/9the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in ei jlh u;5bj2,yquilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 Nh5j,jl;2i uyb , acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force ot:s0gbvnh7c+1r i xy ,f 10 newtons can be combine to form a resuly0cn t+bx r:,h1sg7 vitant with a magnitude of which of the following

  10.06: Which of the following statwv: ,a mdc tn iu611ob/y9f7ycements is most closely associated with Newton’s cya wi:/cvbm1u6n ,td7oy91fThird Law of Motion?

  95.06: The reaction force does not cancel the action forzb(-nrdtil; -- mv 2nkce because:

  14.14: A box rests on the fd jz i9cxndyvbw1e/ y ;.r+;8ploor of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the grav.c9+b de/;iwpnxy v jd;8zy1ritational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constan, bd8ge w*s.nbt speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the 8b .d,bnwge* sskydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. Thb350ua0voy i.zyhe * te batterswings and hits the ball. The magnitudeha. 0u5i 0zvyo*3 tbye 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 boofi *k v(4b5d((l 2 eg)jogzdmuk is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table ebfldi2gzve5j( k o(u4g )m(*dxerts on the book?

  05.06: The students in a Physics I class werkk zq l+u/*oz2e in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the kq2 z/+lo*zu kgraph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the same time the m 90s/qckdppxh,fw6r813hnglmf s+ c( ass of the object was halved,then the accc, h msgpk w93l6sf1xq+nf08hpr/( cdeleration of the object is

  96.15: A car whose mass is 1500 kg is accel a;i3oc t,8upserated uniformly from rest to a speed of 20 m/s ica;ipu3st ,o 8n 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is travelingl h4b/6,8o syop+iuaq down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is soilu+ q8o6,a4bpy/h

  99.16: Which of the following principles best explains why large tra-jo :gkbpb,7x6vc -brl b-t 8yctor-trailer tru-6kyb,v7oc b8rxg bj- l:tpb-cks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kit- d) e+i-wuvsei8 lse:)rwt;logram bait; rs8e)li)-s:d -we utve+wll, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the7 d3tevs a/2 95ckj p/zcha qq(7p,oui surface of the earth with a weight of 100 newtons is acct5,hq/ (v jcuk 2o/p3z aqa7pe sd9ic7elerated 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 constaigh,ca ac-40j nt force of 2400 N. What is the speed g0jh,a4c i a-cof the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides acrouwr wvxu wj94be:a/*,ss a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block sli/ravbej w:*4uw ,xuw9de before coming to rest?

  95.38: A block with initial veloch3:*tfvi)vvcc8;aasvm s s7 (ity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of frictio3v8: s( v;v sahm7 acc*i)vtfsn is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface wh+df fhd ,m4wrxc /-pl*ile a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between-xdfrd4f hc l m*w/+p, 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 unifcbyu ,f7 ukoy ey8b508nio 51*qf z9jnormly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the foluy59o 7fy8nzio*jk,bnqy5u bc 0 8e1flowing 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 onzl0 l0 n+hln:f ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanc0l +hlz0ln n:ned. 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 across a patch of ice at a speed v with its brak4k4 wsimoycy5)g h54 jes locked. Icwh45k4yg oy4)5i m sjt 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 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 car'sh7h4o)q)g ba( up: sus brakes and skidding to a stop. How far would the car have skiddeuuq ph( o sb)gh7:4)sad if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the f5u e6x( xswe-collowing devices. Which of these devices can cause an accsu- xe(x5 w6eceleration 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 newtonsgz6kk c xbi.)- is 24000 newtons. About how much time is needed togzic-xk6. k)b 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 horizontal floor. A person ca-+ s*derm: lghlled 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 exertesl d *r:hg+me-d on the box.

  02.27: The diagram below shows three roller coast6r9u wt7p;pjs i-r,q ier tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlepu 9 jt,w7i 6rp-riqs;ssly 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 bel/m3 lsn6 vm 2d.5p n5ebcdouz9ow shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves fri du m dl2c3vm5non/95bp sz6.ectionlessly 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 rollercoaster9 trsgrcf 4pn4f )65kz cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity.ks9gf rr56f)ptzn44 c What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg isv;/w( +h+ -ein c( j sjejvnykc1ub+5h dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be clj (eck5n ewc+u-iyv+j1b(s;j /h+v h nosest 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 initially at rest is pushed against a wallzn92 ;,q9h 9xa3iohwqiv .k dp 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 truen ;qz9hv hoi9d qk p2.a3w9i,x of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mowezbia2qs ham03ign6k512t bm9r 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 t simng1 azm2 i6 50b92bhaqk3following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table n.vca-uom hs8/,r po-. Neither is moving. Which of the following statements-pv .uc oomh,a-nr/8 s concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh,83dopbxftwh:8+3*hhqe ,1x irpde k t5wwi 2 is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What f28,r3xwioe h:pkwq5d,dttfp 3wi hb*x e 81+horce is responsible for the crate’s increase in speedup the hill?