99.36: What happens to the inertia of xpq( ww0 y;i2pan object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does notn s8w 6oev6k 09yc1mmb depend on the quantity of matter present. Which of the following properties is NOT an ik cwbev6sm19yn8 m 06ontrinsic property?

  04.16: A 20 kg boulder r.ri (bbn/z xvj/lca54 kqdx:/q3q rf7ests on the surface of the Earth. Assume the Earth has mass fbqxli dnb /rc /7rzkq.(3 x:vaqj4/5$5.98 \times 10^{24} \; kg$ 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. Whatg5/x yx)n8 bwn dp2s(y is the magnitude of the gravitational force acting on the earth by the sphere? Theg nnby8(2wps) d5xy/ x Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’sff)dq 2lx*;1m y- qbru velocity to increase while its acceleration dec1bx q;frml- 2u*q)fdyreases?

  00.11: A certain partih;; ta .q 2fev ovh;-wyv*o/tacle undergoes erratic motion. At every point in its motion, the direction of the particle’s momentum ie/hto;v2 -ovyq;.h*a fvat w;s ALWAYS

  17.14: A block is suspended in the air at the end of miltc 9 +7)2wrrx )ilew5e7vp a string held by a person. The person pulls on the string uniformly 27)wmr5 exp9irvwe+7 l tli )caccelerating 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 situationip3 8lxw*ezd:6bo djt g8t40 nj0t z-gs is the net force constantly zero on thol z0p6j4tjnge* b3dg 8 xt t:zd-8iw0e object?

  13.28: An object is in fb/;i rd;zo u0cree fall close to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements m; 0 zuoi;bcr/dust 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 threp4oq;ed7t-k9 pr3 dmk e forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude d 3pt4dk rem;-9k7opqof the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons d wc8yth58lx-elq) 0/h1plonand a force of 10 newtons can be combine to form a resultant with a magnitude of w8q8nleh wldt/l cpy5x0o-)h 1 hich of the following

  10.06: Which of the following statements is most closely ass- dqkcmrtw 0 j lbd//g)l6)dnt3o5o)qociated with Newton’s Third Law of Moti g l3n-t 0o/j6qd)qd))mtrb5w old/ck on?

  95.06: The reaction force does not cancel the action force bevlou30 xtkrx0sei v9f+z9 y6( cause:

  14.14: A box rests on th)wuy,-5n ae* vel bcl/e floor of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair forcec/5 lvu*a ey)we-,lbn to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with con m h-81tct3hex3om 7barv-,hmstant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during t xmm3ro e vt1 -7-chhhb8mat3,he fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. p;dfe.k *z9t 59jyk,0;qsc9knqae u:ukgfs2The batterswings and hit5kq*,k; fej9dkg.2uyp9f tku se 9;s:a qzn c0s the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table*imoa/* cbx2 x3ci:vp. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the formov2xi/ca xi*p*3cb:ce that the table exerts on the book?

  05.06: The students in a Phys-s( +vmuv:o xtics I class were in lab conducting an experiment related to Newton's Svx:-s v+ot(um econd Law. The collected 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 the+ q,sa;+sqjs g5v qzhlllg5 /4 mass of the object was halved,thelq4qhl gg;lq+ a +,sv/s5jz s5n the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated unifo;4h4v ;rm w9;rtqhlkyrmly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the cah;49;wr;tk4 ryqvl hmr is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the traioi (ovs)6a :ykm4eob/ler is 4 times the mass of the tractoy)(i:k s46mae/ovobor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best 0 rt,9myyr + 5tq0nrftexplains why large tractor-trailer trucks generally accelerate mucr tr+t, q9ynfry0tm05h more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kiljy +jpdeuk b ;q*ryjh7 081q-kogram ball, giving the ball a velocity of 10.0 m/s. Whiq8 uk*rjy bdh1qk yj+-;e7pj0 ch statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weightr*bh vrg+(: ;c /mrudc1yv b(m of 100 newtons is accelerater m +:cgc/ rybhdbv1m(u;vr(*d 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 bg(nc t9j8ljm, yiszu46 h;j3i+.ewwm y a constant force of 2400 N(4mctjljzi8, . m36n wj;y +iewh9 ugs. 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 s1 hl1on -dwj8dq2zso+lides across a rough horizontal 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? 2w q1o snodh+z1jl-8d

  95.38: A block with initial velocb , i9s -n3ghhgcoeso6pq2de)zxu-7 0ity 4.0 m/s slides 8.0 m across a rough horizontal floor3 ih9cxhdo),62-g0 p eq-b 7nzeosg su before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface whilenr8hp cgc 2;x. a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box a; cp2grc n.8hxnd 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 qmo8im kofyy9*-d bl10:zx m28 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 bo fdb oz*l1i2mqy-9kmmx 8y0 :est represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slidescesvx 9,dcf;j: ,q eh0 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. 0evfhs, c,cqje:d9 ;x 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 speedcj10(7 aae tlz 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 i1 t ajca(e07lzs μ .

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

  04.32: he driver of a ca;ec1a(b4. c v7svv ats6 yvdhw(:z7dq:2sb xkr makes an emergency stop by slamming on the car's brakes and skidding t1z(bss hcq72cva.tw y(;:b 64evkxvsad:v7 do 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 e2s+ 9iubpq0n each of the following devices. Which of these devices can cause an acceleration in a moving9upiqn 0+ 2sbe 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 150ykf edtrf.fsc )m1)/8 00 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 f.t)sf/fe 1)m kryc8dm/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 ps 2cywbub04l- erson called Ted exerts a force T to the right on the box. A person called Mario exerts a forceb- bs l0c2wy4u 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 shpb,a- i/97rq mkyixv (;f9/sr5 lkqpxows three roller coaster tracks of equal length. Assume that on all tracks the rolleqk y(mb qiip9rlk/5;7,-x r9pa f/v sxr 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 below shows three roller coaste znjyube,: 2xw: 1b9var tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the 1z9ewvau ,jnbb : :2yxsame 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 cartrollsd ,(f7np;ie hw frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acce(,;e np7fi hwdleration at point

  02.40: A box with a mass of 50 kg is draggff( piw+z;q t.,j9n t )9v;g stutxwi6ed across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would b).(g;vtfju9p 9i,ni+t w6qftzt xsw;e 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 initially at rest is pushed against a wall by1 b7,gouj(ymd2./l 7z seyo ou 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 fricto y,sbjgeod7.2m7 (uoy1/luzion acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch s r-ol)/x xz.a4i h*hbof 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 t)rl*ax s/h4hi.-z oxbhe various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans agai)p lw* ax2ry s16szj/ry)- uybnst a crate on a table. Neither is moving. Which of the following statements concerning this situation is Cwsyu p*-b2yrx6 r)z /)1lsyjaORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pu yxd4kr1.ev8nrb 9h1clled up a hill with an increbx98e rdrnv1h41ykc.asing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?