99.36: What happens to th(vev9o+x2j1ce m5 jw uern3j 5e inertia of an object when its velocity is doubled?

  02.14: An intrinsic pij t:22qx+m x) 7kwgovroperty of matter is one that does not depend on the quantity of mattev2:gwx7tx2 o k)ijq m+r present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests /axj fb6upt4kpaj)z2+lt g71on the surface of the Earth. Assume the Earth has mas tx6jafkpgl47)2b/ at p+zuj1s $5.98 \times 10^{24} \; kg$ 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 37gcy49b j 2f c9 wlt- )l:+nfeyqfzyiin free fall near the surface of the Earth. What is the magnitude of the gravitational :4f)q l+yyb2f w3 nc-e 99fylciztgj7 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 incfxiu.7ml7. aqdy y ,-jrease while its acceleration decrease qyld7j-xuf,m 7 ia.y.s?

  00.11: A certain particle undergoes erratic motion. At,bkp(a em3e;yejx8w0 every point in its motion, the direction ofx,(0j m 3 ;ykbee8eapw the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at thh/)x;mf pa 0q:u *ccdue 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 of the following choices correctly identifies the Newton’s Third Law pair ah:pxu;dcu)f cm0*q/ force to the force of the string on the block?

  07.18: In which one of the followe++0 bgn6x/eh) nnn oxb49,v bxytl8hing situations is the net force constantly zeronh + g tnl84 6e,9+x )x0bxnyh/bbevno on the object?

  13.28: An object is in free fall close to the ground. A person intervene tpbr) u(kv9i4s and slows the object uniformly to rest. Which one of the following statements muuiv4(p9bt)r kst 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 of 30 N, F2 of 518 c0bo 39z sv uj/nc(batd-vq0 N, and F3 of 70 N, acting on it. The magnitude of the resultant/ccb(uo j9z08v d -ast13bqvn ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be comu0yc-jwj6rfevxo n)n- 2(k 4j + yyyi(bine to form a resultant with vo4ny+yiw6) yey(-0 r-2 cnuj xj(kj fa magnitude of which of the following

  10.06: Which of the following statements is most closely associated with Newton6 nq e0;bgw06cjor/mcdph-1j w; a:td’s Third p c:g0 n0jd-obqthe1 ;d6c6 mawrw;/jLaw of Motion?

  95.06: The reaction force does not ce lby5 5 k*6(lsma:gphancel the action force because:

  14.14: A box rests on the floor of an elevat2d .:l; .wxdhleqogo:or. The elevator is accelerating upward. Whichgd .:. 2;l woqlox:deh 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 the air with conc skz.s6:;tr l u*he:0+lbkjxstant speed. Which one of the following choices correctly describes the Newton’s Thir:. 0k:kz; te+b6 rjschllux *sd 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. The battercwrw n(d) bx8yyy531 d-l6ot+ic7svq swings and-3br )i 5sl qyy tco8wdy6(7cd +xn1vw hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics bookd+ f(gg /n+lle sits at rest on a table. On top of the book is a calculator, also at rest. Which one of tl +nlg/gf+d( ehe 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 Phy3f ug*u y r2:/ /h5l:haxaecrasics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were disgh5euc2l au: h3rayr f:/ a/*xplayed 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 doubledxbdy 6 zzte8n-2-c 3d9tzv;w d while at the same time the mass o2 d d3zd-;8bztvywe 6-9 xncztf the object was halved,then the acceleration of the object is

  96.15: A car whose mass ixwvt0b 09y t;vp41vwyyz ,n6c s 1500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accvwvwztx,cypt6v;01 n 0y4b 9yelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mg+p*aj+h / ebkawe8 z0ass of the trailer is 4 timesa gbjeaz w+k0ep8h+*/ the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following princi6jw*cfgrvoz k+366laf3f z)s ples best explains why large tractor-trailer trucks generally accelerate mofvffg6) 3lwzrj36s*k z6+c a uch more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rin7d zbp49 3*kbestfa;mfqp)q ,k throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statemebq,p9qm*zdf)a47 3pfskb ; tent describes the subsequent motion?

  00.13: An object near the suu1c4we9; mm hhrface of the earth with a weight of 100 newtons is accehe;4m h1wc9umlerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 120q9 -agp1new(z 0 kg is accelerated from rest by a constant force ofnwqpz91a-( e g 2400 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 m/s sliy8j mu ;jr exvh8q51dn8 5r-4ovfq8apdes across a rough horizontal floor before coming to rest. Tfdjv ;x8a pnh rrqe88m-8145u5 qj ovyhe 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 8jfgqt;hd-,8 5 fxdmmvi) /ax3h xw .t4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefx h3h .t/ mgfvqxwm5,fix- ;8adj8dt) ficient of friction is:

  09.21: A 20.0 kg box 2ykh- a8yd e6tremains at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the s-yk 862adthy eurface 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/u2h1k pwh+q *2rg,puu 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 f+ pw,r 2huhqkup*ug12ollowing 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 ice at a speed v with its vvf:k.mz:9cy x;)f xsbrakes locked. It thsx.fx: f; kc:vy)z9vm en 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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass rl68cak1n ,jo f0t7-s ,.f hn;pzytlbm slides across a patch of ice at a speed v with its brakes locked. It t6lt .fa;7 , p-s8bkfro0hj 1ny lnczt,hen 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's bra :t)f;om:fd mckes and skidding to a stop. How far would the car have skid tmf:);cfdmo:ded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the followd 0pqq-:ay -eming devices. Which of these devices can cause an acceleratio- yp:dqe ma-q0n 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 weilr;j)icw -9bm x5z.qw ght of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s tor x)5; l.m9ij-bzcwq w 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right acb*ru5dl9 4 hpsq:+ 2 rwppe9jgross a horizontal 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 accelerates to the right, rank the sizes ofd+ h j2eu:* qpbsrr9p95p4lg w these three forces exerted on the box.

  02.27: The diagram below shows threvwct70na-z -u20 yucfe roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly ove -y uf-7wzu00c vca2ntr 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 ss3rd7b1)c jdf( kin. ihows three roller coaster tracks of equal length. Assume that on all tracks the roller coas7fdi 1ci).b rjd3kn( ster 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 rollerco8 (/md1v bmbfyaster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What wom(f81m/ byvdbuld be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the flookt/) s.mzelj8rt,a y+r 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 th.m)ljt/t ,yz+era 8 kse 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 ask9 lo1o 3zn.7cd qry1t 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 fricti y1c no zorqk137s9dl.on acting on the block after a time of 1 second?

  05.10: A homeowner pushes a/ pas zg3-3cq -((9deba gihqkfr)7qy lawn mower across a horizontal patch of grass with a constant spa(7psy3a z3q(kgfg9hq/ ri d)q -ebc-eed 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 magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Whw d- c0yj/sw5-e+h aejich of the following statements concernij as+--dj5yeew/w0 hcng this situation is CORRECT?

  06.15: A crate of toys remains;oh ocqi;9*go1py 3 vd at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is noto*;9cohg1 i yqpdv3;o fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?