99.36: What happens to5uaxy lqqq1s0++j d-xzyd1r - the inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depexjwdfbmeelp*q 6 *cky+t7 g7)1h*)cvbad 2m0nd on the quantity of mattertxm da7pqecl ey 7*h*1+0 6bvgk2))mcdfb*wj present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Ej.t3mlsjx fax l6)( g8arth has maf j) j(agtx6xs l8lm.3ss $5.98 \times 10^{24} \; kg$ 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 oe3 n76 p:ie75nmmtoybf the Earth. What is the magnitude of the gratyn5e :i 3 mnp76meb7ovitational 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 ac n- a2w-jpwt/)g zf6mjfks /.sceleration dep 6nzg /2kj.a ) s-/f-wmjfswtcreases?

  00.11: A certain particle undergoes erratic motion. At every point in its mo +ya,chj9mzx9 tion, the direction of the particle’s momentum ,ayj 9xh+mcz9 is ALWAYS

  17.14: A block is suspended in the air at the end of a strinhz:rkle 6+e y1g 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 ideneykh:rz+6l1 etifies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of cybf3ugf :uf 7 gah8l:g4n99ethe following situations is the net force constantly zero on the 8 4a b:fye9lf9ug nugg:cfh3 7object?

  13.28: An object is in free fall close to the groundt.* jst;qpu11,gu eve. 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 stost,; 1j*u v.tepg e1qupped 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 50 Ncb v 6wy;*x:fi, and F3 of 70 N, acting on it. The magnitude of the resultant;v fib* w6cx:y ofF1 and F2 is

  01.07: A force of 6 Newtons and a kdefdv xa hg3, d.4b6nd:90ayforce of 10 newtons can be combine to form a rd4 abg,d.fn:x hek 3vay9d6d0esultant with a magnitude of which of the following

  10.06: Which of the following statp.g.llm 5,5lpfw9h * mamjis6 ements is most closely associated with Newton’s Third Law of Motl5flaj wplp9.mmhsg *65, im.ion?

  95.06: The reaction force does not cancel the actier9md)s/6q xron force because:

  14.14: A box rests ond71; ihed:6uv tbdb6bakm8,3 l-tpq6 zxqb0k the floor 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 gravitational force acting on the box by the Ea p, 1 q6 7b;q8x0ldt3dbz: 66mhv-btbkuide karth?

  15.15: A skydiver falls downward throughs u*zf*r+qs)n the air with constant speed. Which one of the fo* r+n s*)zqfsullowing 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 m/s. The k6c+amk/eo;a3:o iax batterswings and hits the ball. The magnitude of the force that the ball eam3 6 xa;eac+/o:ikokxerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a calcuu11 ct2q6thc5wf6wzppgz ,)ilator, also at rest. Which one of the fol16,i tw pgzu)5pt2f qch61zwclowing 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 Physics I clas 8-uhcu6 t/bvn;6vsuks 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 conclusions can the students makeuvuhn6vb c6ut s k-;/8?

  99.03: If the net force on an object were doubled while at the samei5qy,nbq5-z0w*79ph rypwqv time the maszqpv*q-w iwb95p7 ,yrq0 n5yhs of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly fku yq-z4f15i zrom rest to a speed of 20 m/s in 10s. The magnitude of t5-z f 41zkyquihe net force accelerating the car is:

  99.05: A tractor-trailer truck is travelqbennol) y v(h5;w7)e ing 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 traile ewy)hl (v7n)n;5 eqbor applies on the tractor is

  99.16: Which of the following p0 k2swnb14(q9f wj bqorinciples best explains why large tractor-trailer trucks generally acc(0jfo9wkn wq2bsb1 q 4elerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionlesfpuyb29ew7 gf1 /hr+ps rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes t+gruf ew/b7p29hfp 1yhe subsequent motion?

  00.13: An object near the surface of the eary 6hga9 ,5gbirth with a weight of 100 newtons is accelh9a5r6,i g bygerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is ac03mht :abvx. n.4 -k9ilxzkfy celerated from rest by a constant force of 2400 N. What is the speed tf kk4a:3h- bxvy.zi9xlmn 0. of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizontaqi0h:p +wk8zgduhw ;1l floor before coming to khp qgd:8uw1+;hzi0 w 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 across a rough horb47av0 ir2d:vvwwk 9 fizontalikr7vwdb20w9 f:avv4 floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surfadgdwz1df u(6( ce while a person pushes directly to the right on the box with a force f1 gdddw(z6(uof 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 x*om b,nn;w-h3ye s3a 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 e3ns, wxanoy-b *m3h;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 f 7p:cbv5u0xko(w)28w admt i v with its brakes locked. It then hits dry pavemen8oi7(f)vc2 auwm ptwbx:05 kdt 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 slides across a patch of ice at a speed v with itspm48bpo8w./xw b 11 yjisex.l brakes locked. It then hits dry paxb.iwe8l1 m b ps.1op/xj4y8 wvement 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 bk2*67ignsf i ssczp+*rakes and skiddi*ikf2ngpz7s*i+6 ss cng to a stop. How far would 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 gl 4 mi*fp: mzfmn(p*ogdm)ef/3l 91i following devices. Which of these devicmi f1p)fmli39lg/ zn* m:eo(dg* m4pfes 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 rockebw s1 wlswb:w64fg1 2xog (ad9t with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 mx:1 2 ogbsws 49fw (b6wwgld1a/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizwn sbj9 ;o53psontal 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 sbp5;9so jn3 wlarge 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 coaster tracks of equal lengz 5h1 ggd4e;dh6pen4-edb,kp th. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moveszhb ;5ek4 pgdgp-,ed1end h6 4 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 coasterqdfwmle9t *gz,. e-h - tracks of equal length. Assume that on all track-tgqde.e f-w*,z9 mhls 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 frictionlem +e 0djnts7ar9:krjcp we085v3 e q/tssly along the curved track from point A to point C unv3k:pee7 /a0tw q 9je05jrms c8+ndt rder the influence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a massp/0;bg p;z; pibmk1fx of 50 kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to thefpxikp0m p g1zb;/;b; 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 wg093 ut;:q8n61 *mcjo qm ibix7xc,e ivax* ekall 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 friction acting on the block after a tib3ga0uxq6e,m:xm;in*c i7et* q 18j9vc koixme of 1 second?

  05.10: A homeowner pushes a la3/cru a3gb5-kgkj l/lwn mower across a horizontal patch of grass with a constant speed by applying a force P. The arr lu5a3r-cg lj/bg3kk/ows 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. Whic rvo38 ir1nb;q(q 0sdjh of the following statements concerning this situation is CORRECT? rbvq i0q3dos (j1r;8n

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled p;kfq.ly y0 dd6s v9f1up a hill with an increasing speed. The crate19 y l0ddsvpq6.;fyfk is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?