99.36: What happens to the inertia of an object when its velocity is doub) lp0td/ahf; xled?

  02.14: An intrinsic property of matter is one w8 xvsn xf )k7kdxf615that does not depend on the quantity of matter present. Which of the following properties n1f7v 68s kfx 5xx)dwkis NOT an intrinsic property?

  04.16: A 20 kg boulder hri5 dlmt9vm:j) .ui) rests on the surface of the Earth. Assume the Earth has mass i v59.)dj): ilmhurmt $5.98 \times 10^{24} \; kg$ 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 Earth. Whh 5*(dbl.h cgr9j kq4uat is thej5.(hcr9d 4*lgbk hq u magnitude of the gravitational 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; d5jd+psb8mg lc-0aw90 bp iy its acceleration j0dp-a+58 c isdpgy ;bbl0wm9 decreases?

  00.11: A certain particle undergoes erratm+ nj;xlza z rjup 46trm9,.+tu+ vbh(ic motion. At every point in its motion, the direction of the particle’s momentum i9z +xht;z(rn,m.l6uujj+br 4 atv mp+s ALWAYS

  17.14: A block is suspended in the air at the end of a stringd 1w.e9rjlm u2 held by a person. The person pulls on the m.j29ew r1dul 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 force to the force of the string on the block?

  07.18: In which one of the following situatiijygc / q-r,v)uhke, 0ons is the net force constantly zero cj,/,-hu0 )qky revig on the object?

  13.28: An object is in free fall close to the ground. A person interven jhjwmv, 2*wk7,kmhgs sq:3y;es and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude 3kwk *:sm wh;2sm yqg ,j,7hvjof 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 equilibr or)yp5v37n my u6,a+ov2g gzyium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude o+v7 gz3y 6,no52m va)prgoyuyf the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons (77f4rpnjvv f kt.h 7cng(v; hcan be combine to form a resultant witr;(fnv7vpg(h ck.v7t 4n f7hj h a magnitude of which of the following

  10.06: Which of the following statements is most closely associated with Ncmwr,; n /tg4rewton’s Thirt/rgnc; wm4 r,d Law of Motion?

  95.06: The reaction force does nor-tn.ww,. jy at cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accele4;5f2 e0jk7akecuxzxrating 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 Earthuxefe0z5;k 7 x cja2k4?

  15.15: A skydiver falls downward through the air with consf 5hhd9an7x74pte/ 5a s(8pqr x+goby tant speed. Which one of the following choices correctly describes the Newton’s Third Lawphx95 f potxe br4qhd 75ya7 as(/g8n+ pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a spxco3:;aqkm 9s uu(8)p ninw i3eed of 35 m/s. The batterswings and hits the ball. The magnitude of the force thataw o:unucxi (m3n 9sp)iq3;k8 the ball exerts on the bat is always

  11.13: A physics book sits at rest on 8f.6c* ul9bokb:mh mlt*41q by3n a daa table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newtomyo81bubba.mch 9lk :**f3a t l 4nd6qn’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 conducting an experiment m z3.vre.ggesu6m nn47ypa (v j+p/w*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 make+y p(jrmgmw7z3*pa /u.4ne s v6gev.n?

  99.03: If the net force on an object were douz nf ra;(6ct z-s3h-005qb)k2uanuqwf rru:o bled while at the same time the mass of the object was halved,then the acceleration f 6-;0rr0 ru a kb2(ucfzquon5wa-n)zsht3:q of the object is

  96.15: A car whose mass is 1500 kg is acceleral+eey5d( 3szs ted uniformly from rest to a speed of 20 m/s in 10s. The magnitude of ty l+ed5(3zsse he net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass oq5jsbi 83f)oi :kw4jgf the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer apsowb i4q: i3gfkj58j)plies on the tractor is

  99.16: Which of the following principles best explains whyaw jrz k),t2 9g5s8u,0 d0cx(mgporep large tractor-trailer trucks generally accelerate mr 0p, 2x8mocg 95 w,gs0dtku)ze(prja uch more slowly that automobiles?

  99.19: A 50 kilogram s9r6oqu:fi uec5xlm0z2+q 6ca kater at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes ther6 x:qa2u95cuqmfco+6l e0z i subsequent motion?

  00.13: An object near the surf xqay h+uj k2136xk;wvpyi i,0ace of the earth with a weight of 100 newtons is accelerated at0 2upyxaxi3qv6w ,ky 1j;+k hi $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is9sqg)- d+b k1rp+ph, vfzb)ns 1200 kg is accelerated from rest by a constant force of 2401+ p)-pzdsqhrn9b) f sb,k+vg0 N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial spd*yim-x2r8 rw eyd:7 peed 4.0 m/s slides across a rough horizontal floor beforx28 rp:mdey*idr 7-w ye 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 r)0g0:gp- -jxm k jduq3q2pap8.0 m across a rough horizontal floor before coming to rest. The coq u-m grgkpxqap 02dj-: pj03)efficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontaw+0ll41s +6vr o itfqzl surface while a person pushes directly to the right on the box with a force of 60N. T o t1r46vll0++zsqwfihe 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 movozsf zpdeieb pi,kpa1gu :*17/1r( 5iing at 8 m/s accelerates uniformly to rest on a horizontal surface. The block travelsg5:1( /i dbo, pr7eikpe uz psfa1zi1* a distance of 12.0 m during the 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 ice at a speed v with ;hov:)q;ejsk its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tireso;vjsqk:h e); 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 ic69fi q0ewn7x oe at a speed v with its brakes locked. It then hits dry pavement anifen wx67q90od 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 stopa.+ (yd cxvz*n by slamming on the car's brakes and skidding to a stop. How far would the car have skidded i c(z.na vy*d+xf it had been traveling twice as fast?

  99.39: The driver of an automobile mu +;ntth )8(/ilcxcjh zst carefully control each of the following de iczlh+j8ht/;nt()x c vices. Which of these devices 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 rocket with a weight of 15000 ne3dehww)pl(rgyje h3is:, 7 m+wtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at ( ehw de3jhp+)msy7:wr g 3il,takeoff?

  07.21: A box slides to the right across a horizontal floor. A persi 1-,3rh o3od9f5 rkezdh s/jpon 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 th fprhd1-3,j9 3h 5 isr/kzoodeat 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 thrtwgnvg n(xst *om7:8 *ee roller coaster tracks of equal length. Assummwn7 xtnsgo:8 (vg**te that on 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 be traveling the fastest at the finish?

  02.28: The diagram belo 0cb3hf6jn 01 kunc(arw shows three roller coaster tracks of equal length. Assume that on all tracks the rollerj0 k fhcc3unanb 60(1r 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 frictiont,bj7luoo ,sb9g dh1,l d7h+zlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's +lg1ujlsbhz7hot d,, o d7 ,b9acceleration at point

  02.40: A box with a mass of 50 kg is dragge* u);hb )u;4kwzhokvjd across the floor 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 the rope is required to move the crate at a constant speed of 20kzuv;)uo* );wbkh j h4 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against g *hz8)mag90 9g5wayk n t(pbys9tk-s a wall by a 100 N force as shown. Thecoefficient of kinetic friction 0t)s9g wg59t(akynpy 9 ag -8bzsmhk*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 horizontpe6(1 f njae4qal patch of grass with a constant 1eq(aen6 fj4pspeed 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 aa:;lsm g(t hw* table. Neither is moving. Which of the follow*sw:l;ma h( tging statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh isetq + x(w,yhh 34qa*pb pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh qh+w4atep(h*b3 xy, q. What force is responsible for the crate’s increase in speedup the hill?