99.36: What happens to the inertia of an object when its velyh kk4 p)u1g;tocity is doubled?

  02.14: An intrinsic property of matter is ubce:ssj 5 5y(thz04kone that does not depend on the quantity of matter jh 5(zb45 u0sskce:yt present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder res8.vh. 8l0tz0uzypsc p ts on the surface of the Earth. Assume the Earth has massup8.c8 tyl0sh0z. pz v $5.98 \times 10^{24} \; kg$ 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 surfacxjvrlt7p r2 :qu*4r4 ve of the Earth. What is the magnitude of the gra vx rlvtjpu:7*24 rrq4vitational 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 nam id e/iy.w*rt;:sx l, ig)ce cyn2g+60th )acceleration decrease:;d/y ct*mcn)h e 2 .i tn6+gix0seari,wlyg)s?

  00.11: A certain particle undergoes erratic motion. /n 8 nq:-;bd0lgvnm zuAt every point in its motion, the direction of the particle-/duvm g;nl:0nq8znb’s momentum is ALWAYS

  17.14: A block is suspended in the(q2t1 j 1fyoar:rs/z l air at the end 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 off (ry1a:tzo/s r l21jq 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:zm,q 7nfkd/ d)r4ngf situations is the net force constantly zero on the obfrf4 m7)q,d nd:kz/ ngject?

  13.28: An object is in free9pc03-ed cmzn ,yej6z fall close to the ground. A person intervenes and slows the object uniformly to rest. Which 69 jcp,3eyd0 nczm-ezone 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 ofvh. 8v 7yh.mcp/0jtts 30 N, F2 of 50 N, and F3 of 70 N, acting on it. ./ v0y hjh8t.7t mpscvThe magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtonsth6va8q2/k; *od xrg-7zft9s x0x nke can be combine to form a resultant with a magnitude of which of the foll/tfhr; ta0dqk zsxe28x9v6o x*g7n-kowing

  10.06: Which of the following statements is most closely associated wisxe 5i+b3,fhou w: (ldfmr2xg.si:ds:y. / vkth Newton’s Third Law o2:li u5krx.my (d+fxb.vss:si/hf eg: 3dw, of Motion?

  95.06: The reaction force does not cancel the action forcewjc3;w tubo12.2 tv1yehy 5nk because:

  14.14: A box rests o1n0j 6p z+pm*htu+s*j pflhl/n the floor of an elevator. The elevator is accelerating upward. Which one of the following choices bestf+pmtjp /*hh0pz u6s 1nl+lj* 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 the air with constant speed. bg92 1eb*j l :uovqks-i2,t )ejgx1 pd Which one of the following choices correctly describipk,s2t* d xub2j9qgbe1g )o je1l-v: es 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 m/s. qb7,e w u)p,9 tj).b,54t-dmb jgzb6k tnwnwm The batterswings and hits the ball. T , b nuew4wt6. tbb,j,-btd 9p5)mqmjkgn7 z)whe 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 is v lh830nfg 8e/ b)wn2,lnltllet8m ku3 cz0v+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 exerts on8n8llbn )gtv3 te lw3ku0v,lhc/ 0f8 +zme l2n the book?

  05.06: The students in a Physics I class were in lab6byrn 8xvd5bj0/h5ccdq f+ o5 iz k(j, conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the 8( q5 bnfd r/zioc 0,x55cv+jhy6 jdbkright. From this graph, what conclusions can the students make?

  99.03: If the net force on an object werehs.p +a )kunj x8appn6n+x/2m doubled while at the same time the mass of the object was halx+)n6up/.x 2njapk+ 8apshnm ved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerate c6*mrqhe/gc g028eiv d uniformly from rest to a speed of 20 m/s in 10s. The magnitude of hg/c 2*eve80 ci6gqrmthe net force accelerating the car is:

  99.05: A tractor-trailer truck is travelic,k3ak209omnr (dp (ptzk4qk ng 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 applk4 ( azpqkt conkk(2pr390d,m ies on the tractor is

  99.16: Which of the following principles best explains why2(u f)o8-zz 5hlo ogrq large tractor-trailer 5zqo-r)lu8g(o foh2z trucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink x pz-k i+8m-pxthrows a 2 kilogram bap-zx -x8 p+ikmll, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the 2.t)y v/b0tyiu;gp 0zjh(o/gc .vu uaearth with a weight of 100 newtons is accelerated at (v)ypgbautoy2/ t0gi z .v;u0 .j c/hu$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constan0lulsmy)st2j 52s5 al t force of 2400s2j055ut2s )salmyl l N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 pz ,4 6gtl gh/jfa5a9vm/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 thephlvazt j 6,ga/ g945f block slide before coming to rest?

  95.38: A block with init0gq k sjg5xq-nr;;wwy 4px)z( ial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor q(s0pr wwx ;qj5g;4) y nx-gzkbefore coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box rem)u y7-eoq: r,1grypbjains at rest on a horizontal surface while a person pushes dio-),q1ruy eyb:rjg7 p rectly 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 accel -(ri-m8 elro9hhzlj 6erates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during t( r-l6zr-ei h89lmohjhe 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 icmo ptucrp-5 +aj+y2x r:*4w4dl+uiz ge at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic4+cwz4yt5rd p roil u2jx-:u* pg+a+m 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 s1q9xla)3a t enlides across 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 kinetaq 3 n1eat9)xlic 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 emer ++uw +e0xtygh 6*rrthgency stop by slamming on the car's brakes and skidding to a s6+heg r*y0 uxtrth++wtop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully controlj;0t+ogh( vby each of the following devices. Which of these devices can cause an acceleration in a moving car? gj(ov;+htb 0y
(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 24000 4:+i( 0x wy ku+qydly/igrw:gnewtons. About how much time is needed to incre(i gr q+dy+:yi:w kx0gly4uw/ase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides tohy1yspzy fw 6s y)3(g* the right across a horizontal floor. A person called Ted exerts a force T 1y3 yhy*y6s sf(gzp)wto 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 exerted on the box.

  02.27: The diagram below shows three roller coael+l, 7m/wjbv0lj9) /s )y4e3 ; cxhtd sekedjster tracks 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 finish., 7 s me;d/x)c+y/0j3ldh9jsbjvlwe4e tlek )
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 eq4z( iq+m)n ynfdl.he p4b s5pxcp:4(qual length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly overqp4:ihfeqn ln 5+b 4c.)ps(mp(d4xyz 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 rollercza a1 )* 7 hg7qko fjkbp*l9xzo(e1dj4oaster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the ohkefao 4)*7*xklgz 9jbqd 1 a1z7j p(cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the fl6bu04k roy1m;pa te;uoor by a rope which makes an angle of 300 wum eak;ptyu;b6r 0 1o4ith 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 diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall b ;3 7gb5i6mra8o -fifuuf obw5y a 100 N force as shown. Thec7gu6fr bo5 5 ;8f- imwuifao3boefficient 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 across a horizontal patch of gan a7q* o2 +qieg/rbt5rass with a constant speed by applying a force P. The arrows in the diagram correctly indicate the directions but not necessao+/ 7 *gabnqi5rtq ae2rily 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 6+tlbrvbpkchq4,rd)4 )8 odma crate on a table. Neither is moving. Which of the following statements concerning this situation is CORRrb)m loc rb)d68,dpkv+4 htq4ECT?

  06.15: A crate of toys remains at rest on a sleigh as the s-l0sz-jjd g/f (x5ol: mrabh*, rif 2oleigh 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 increase in speedup thd-x- 0fl2*ojgfirz 5m,rl(h/:ba sjoe hill?