99.36: What happens to the inertia of an object wh;v-t sokhn,1y en its velocity is doubled?

  02.14: An intrinsic property of mavz2sc17g3 a xytter is one that does not depend on the quantity of matte1gs7v a 3cyzx2r present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of theor ovtkt5/h0t;p: p9fnlp8 . n Earth. Assume the Earth has mavn;p tot pn8t.0k fp/ l5h:9ross $5.98 \times 10^{24} \; kg$ 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 the E1s*,(sl kx+eu lwu1 ykarth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth mass is 1,u+ ly(*kskxeu swl1 $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s v cb :jndg ab8o*od;l.7elocity to increase while its acceleration d :.;g7aboclno* dj8bdecreases?

  00.11: A certain particle undergoes erra()+ sz4 ) uu se9iexx5gwzdwi(tic motion. At every point in its motion, the direction of the particle’s mwsxwu9id 4egx+)(zi(sze5u)omentum is ALWAYS

  17.14: A block is suspen2 vs r7ofk6f+zded in the air at the end of a string held by a person. The person pulls on the string276s+ vrfk ozf 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 force of the string on the block?

  07.18: In which one of the following situations isc50.n y1oah ,dw(6jx oa0sbha the net force constantly zero on tnc1 bdhs506. o,o(yhaa 0 wjaxhe object?

  13.28: An object is in free fall cll sdl :03uu3hk2tmcx9ose to the ground. A person intervenes and slows the object uniformly to rest. Which one of d3c9:20uxh 3l kltmusthe 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 eqg- .q:xj/d qehnfz91wuilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting h 1-zqdg .eqj9f:wxn/on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to form /; ;oladm zo61yn e*kja resultant with a magnitude of which of the fk*/ ozea; l1o ny6jmd;ollowing

  10.06: Which of the following statements is most closely assoc.qm:u+-gaw vthub m7 3iated with Newton’s Third+3h.ubw7gm:a vq mu-t Law of Motion?

  95.06: The reaction force does notc5ii p a*uuls22o6yi7k+( nf k cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is ac/gw wv96 52s mon2*cot5n umlocelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on thnl6 w/5 *2u2onvsocgwt mo5m9e box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. ; y-87xvwj-+a vz(h-pz1rnd)nqniq r Which one of the following choices correctly describes the Newton’s Thy8rn -)nj qdnr1zp(-aqh zi7;-wvv+xird Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown b8 xkfg-qwm0( jy a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magn-xf (80 gjmkwqitude 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 7 8/0e,pfdq2 ogaqfb9 pgk (arof the book is a calculator, also at rest. Which one of the following chpo/7p8q920 bq,gkgfad a (freoices 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 +oz d 8;trr18 i4ezfwwconducting an experiment related to Newton's Second Law. The collected data were displayed on the graph atrrzfi 81tw+4we 8z;o d the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an z uw0w5/v+ymwd)k fd,object were doubled while at the same time the mass of the obje,w+yuv5mzw dk)d/w0f ct was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest thu:f: oecy: 7do a speed of 20 m/s o :hcy:7eu:df in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is travelin*f5cikqbeq7i r+/s7sg 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 traisics*7fibq /+r q7 ke5ler applies on the tractor is

  99.16: Which of the following pdk , n-zh7fvivf0o, 2irinciples best explains why large tractor-trailer trucks generally accelerfvo d,-0z,f viki7n h2ate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest onmb(n2mpao0t1y6 b kd h03h1p f a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequhhb60pfd ypb ta3n(o mm211k 0ent motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons fe7jk av.5:sw is accfjvk7wa. 5 s:eelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceleg ;w/o k3/rghw2+kzoqog:lb;rated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s afte; gw+ho2rwo3lb/q:z ; ok/kggr beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizonzdatd z+t(iz;r q 2,)italq,rid (z+)i2; z adtzt floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m acro f,d7vm2m / v0(fr: fob8tbsfwss a rough horizontal floor before coming to rest. The coefficif7s(dr2:8 om bvfwm fv/,b0tfent of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface whiletmv q/78so)ey7,9sd*hgb an- , bykq l a person pushes dsam-obh vnd, 7b9 q /,*)kltsy egy87qirectly 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 uniformh:q-5hed-l us 7:khdxk xym,3ly 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 coefficie3 hld hkdq:mx- ek,-7yushx:5nt 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 with its brq6lol ;*al*/leig mm;akes locked. It then hits /l*li a6mlmg; q*l oe;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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slidu x3jz/uj;oyafu2yj11fd/cpwo1- *v es 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 kinetic friction between the tires and the dry roajzo cujydyau 21fpw1xjo 3-;fu/1 v*/d is μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car make vtw4m,h n)t7es an emergency stop by slamming on the car's brakes and skidding to a stop. How far would t,nemtt 4wh )v7he car have skidded if it had been traveling twice as fast?

  99.39: The driver of an autywk6jrj(ne5a x/**znomobile must carefully control each of the following devices. Which of these devices can cause an acceley jj nawn65x *(kzer*/ration 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 zs j b4u 5mv:3fojq bj,u.nk/.15000 newtons is 24000 newtons. About how much time is needed tosjzu5kvn:. b3 q .o jmfj4/,ub 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 pey c8ylosf k hi.: :k0gx;dp1s/rson 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 ffsck./oy yld:8ixk 1;0gp:shorce 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 lengyy8 cns 6m mwvvf+e*m:8k 4n:hth. Assume that on all tracks the roller coaster carts start from rest at the same elevation8ym m*k h4vv:e8 +fscy:nnwm6 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 trackzmyp*g w n3*b (s,7fl(djz s;ws of equal length. Assume that o(sw,gdbl(m w7znz 3f*;js* ypn 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly alo 58;p -hyu ggtxqw6z2rng the curved track from point A to point C under the influence of gravity. What would be the dirz-8;y 2wq5h ugt gpx6rection of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by 1 5tfo2r+k sc dcb4aliw)t;- xa rope which makes an angle of 300 with the horizontal. Which of the l;2cs5-bi1 +ofxa)tcd4tk r w 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 initially1hsov b* is7dcu-tpkdzp 0ck 9o (/n;:,gtcx 2 at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the cost dicht(uov2n :-c, x pp*d9k0 ock ;7g/b1szefficient 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 pushjhc0m( grid/qr3-q3get n 9 n+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 various forces on the lawn mower. Which of the following relations among the various force maqm rt-cd3r+gn3 e0 gn9hji/q( gnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which oev3,8 o iq hc8dw0jbm5s;umr 154msg mf the following statements concerningi;e1uormjb8mqss 3 4 hvd0c8 gm5 ,w5m this situation is CORRECT?

  06.15: A crate of toys remains at rest on a slei 4k5 xoq.llep1vgwv;1gh as the sleigh is pulled up a hill with an increasing speed. The crate is noe .vlp411lv 5wk;qogx t fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?