99.36: What happens to the inertia of an object when its velocity is doubledv90 vtz0 zz53vfw 6:vxfrxj:a?

  02.14: An intrinsic property of matter is one that does not depend on the sy;wft4 ;rfk / o5las0quantity of matter present. Which of the following properties is NOT an intrinsic paos 0srf 5;yflkt;/ w4roperty?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume thb x2tnbb0.fipwym799j5w bsx vj 79x* e Earth has mass bb.9 0 2spxmjv*9iw7 jx n97bx5f tbwy $5.98 \times 10^{24} \; kg$ 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. nlhrz9im /v0-8 a ,b14hwog znWhat is the magnitude of the gravitational force acting on the earth by the sphe 904n/ogrli 8hh ,vz1nbzma w-re? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible forb/*q7bz*l 4l7eybnf n .6jkf t an object’s velocity to increase while its acceleration decreas*tk*7n.bb q64 fjlen/fly 7b zes?

  00.11: A certain partin u64zm gt .4,l*c9e whqtef1bcle undergoes erratic motion. At every point in its motion, the dif6e u4wn. c *4bqm9,hltetzg1rection of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end oco95j vsbo +sos:ap: 1f 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 Thirc9:sovosb op +5saj:1d Law pair force to the force of the string on the block?

  07.18: In which one of the following situations is the ntf8 dolv, t,rvw w/4ltqv pgfb48r*5;et force constantly zero on the ,vog84w,/ tp8d 4lf wtqfrvtb; 5lvr*object?

  13.28: An object is in free fall close to r/u6c3 2ivlxod)ze5 uthe ground. 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 stopped by the person? The magnitude of the object’s acceleration is a and the magnitude of the acceleration from gc) evxor 6di5u l/3zu2ravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 1dq8 .xa;gzj/-a7kv 2humrcbN, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofFzhujq8 .vaa-;1d cb2m7 gr xk/1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can bey :8ijrl sp:k8kb3/vc combine to form a resultant with a magnitude of which ov8c/ lp :bkrj3:8si ykf the following

  10.06: Which of the following statements is most closely assqt yb+qmjhbw6er.8emm8 **i:ociated with Newton’s Thirdwme t+ qr*m :hbbi.eq*jy 86m8 Law of Motion?

  95.06: The reaction force does not canj3.a/lbe2h(y;k 25p u c8 gfkacwusr6cel the action force because:

  14.14: A box rests on thdvr :4p+rd57+nv d*:qmliowye 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 tv qp:rn7iydwro:*5 ml d+4d+vhe gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Whic52(w 2k ;pevkzg1dpnv h one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on thdvv 22;zg pk5w(1pekn e skydiver during the fall?

  06.08: A baseball is throw8kmig0k f-:o 95edf)qrz1xds n by a pitcher with a speed of 35 m/s. The batterswings andk-:zs5 dr 1gkd qef0)x9mi 8of hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at res ) 2nfv:fd0o7 nzcrs+ac8ab0w t on a table. On top of the book is a calculator, also at rest. Which one of the following choices can2 oc0asn7bf+0wv: d8f)zris 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 conlkm 5.ewoal5 0ducting an experiment related to Newton's Second Law. The c5wa oll5 .e0mkollected data were displayed 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 doubled while at the same time tg t8k/6jpa) t*9w, j)50ucubamfsbcihe mass of the object was halved,then the accelerationb, 0)t6c) i 58 bjpamu/9uscjftgka w* of the object is

  96.15: A car whose mass is7p: -/v.s1g:xb3qx aa ogsjvu 1500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the car is:b vsg: aj3-s 7:o axp.u1gxqv/

  99.05: A tractor-trailer truck is):3(he relts+blr c8 l traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force thate():blsce h+l8rtr3 l the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-trahhp8c . a00up*h;dq djiler trucks generally accelerate much mord0 p*q 8a.0hducjhph;e slowly that automobiles?

  99.19: A 50 kilogram skate a6nda.hj6s5( omjdz-r at rest on a frictionless rink throws a 2 kilogram ball, giving the bal66jj sod-da zn(ah5. ml a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a wzqg)- 0rvboywo5 zl-87 2qmet eight of 100 newtons is acceletz082-vm )qrz 7qolw- b 5yogerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a cow 30y hgcv32gfnstant force of 2400 N. What is the speed of the cgv3g 32wy0hcfar 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides acroskf us dzy+ ++a3y0eb(ts a rough horizontal floor before coming to rest. The frictional force acting on the blo 3yd+eyz+f (0stub+akck is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velpxy9qbsk v7 1 f/qfjl7q q/u(9ocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefk7f vsl /ju9fqqy 1/bx(9qqp7 ficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal sugl 7dqy4-b 9qcrface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction betwe4yg qdc7l q9-ben 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 9zshreh 0,7tj 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which onez 79e0hrh,stj 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 iccv*)1xg c-ecne at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coe egncv-*cx)1cfficient 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 sliw4 z5nq -(yptc*sq)4ve b 1bykdes 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 road is μ *bbyq(w k 4nyevcp51-sz4 ) qt.

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 brake k55lzhe q78 ik6tob9.shd0q (hnkq o(s and skidding to a stop. How far woulkh h7h8e qot9k. kn(l5ozsb d(iq 06q5d the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefd- (ag8glqzsk/p h9/ 7hl)o idully control each of the following devices. psqd d-/ hl9z/k7i(g8oglh )aWhich 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 15jkn4hjohhh5a7 wc ( 6.000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface6jwhk.n hhh j45oc 7(a of the Earth at takeoff?

  07.21: A box slides to the right acrosse uar;pam6)rlo+ + u qt1jm,y- a horizontal floor. A person called Ted exerts a force T to the right on the +ojp a;61 r l )+umme,-qratyubox. 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 sho 4bkkr adhx:6wo3 e8a5ws three roller coaster tracks of equal length. Assume that on all tracks the roller coas:d45b 8a3h6exkwok rater 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 below shows three roller corqlfh 939 pl,paster tracks of equal length. Assume that on all tracks the roller coaph9, l3p9lqfrster 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 frictionlru1wvog4ve,1qh-i /i 5j/ dswessly along the curved track from point A to point C under the influence of gravity. Wha14q j- 5,ue hdr1vi/wgwo i/svt would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floo iai33src) vmy*e 1*h3n e.1bljwh7ky7 vs( htr 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 anae vshtl*1v1h*e hr 3 37 i.w3n7sc)kmy(b ijyd 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 by a 100 .)gz )cp e.ot7nfy+l,3tihj u 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 foyp e t3f7c..hzi+t) n l)j,ugriction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizocwvte;v;+*wczjf.u p+ 2 ifj 8ntal 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 magnitudes, W, f, N, P is CORvzwvejfcj p c*tif;+2;.u w+8RECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which of wyc/o87y e0q k(i0mzzthe following statement cz0 z yy7/i(kwm0oeq8s concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulleds9 n/h,an 0nab 5;rgau up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s i9rn/; 5na,u a0nahgbsncrease in speedup the hill?