99.36: What happens to the inertia of an object when z:bcvyks+/ph6t t)8 6zf gnbf5ne5n9 its velocity is doubled?

  02.14: An intrinsic property of matter is one 8a5x88ba faian nwf/+ that does not depend on the quantity of matter presenxibwaan8naf / 8af +85t. 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 Earth ha1hz3cbz58o f8 0izahed (- upv8 zl6j+cs b;mts massfm+z(-;jh5 zesdv 0u86ztc ocib1l3b88ah p z $5.98 \times 10^{24} \; kg$ 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 thbbc 5g( ogr7/le Earth. What is the magnitude of the gravitational force actin(rcg7gob 5l/bg 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 velocit g3bn ,;qh.qkay to increase while its acceleration de;gbn khq q3,.acreases?

  00.11: A certain particle undergoes erratic motion. At eve9nt,2c se6ki lry point in its motion, the d,i9tesl6 c n2kirection of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held1fdh) u 8ab;zqc7 c8)e0qq kea 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)e1 dbcqf)8eq7z ukaqa8 h0c ; 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 th-8 orl3boe2-h kt1u)a kh5niue following situations is the net force constantly zero on the object?i51tu ah) ku8-rbo 3h2oek-ln

  13.28: An object is in free fall closu 5p4jum9 / gq(cuha6je to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be tr(c9h g/puj um4 qa5j6uue 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 d/ii4x+s 0-2uhehuysmmd8 m* of 50 N, and F3 of 70 N, acting on it. The magnit4h eysh0i +d8*-ms2i m/dumxu ude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combijtz7pkjk+2d t-ah)3omp) - yune to form a resultant with a ma3+t- )7p)2aytzhkmjo-ukjdpgnitude of which of the following

  10.06: Which of the following statements is most closely associated with Newton6vf5r)rsk1 x/1 3a kwxenkkj9ao2tq.’s Third Law of 3/kj9n 6aa1x r5 1tv.ok)e w2xksr qkfMotion?

  95.06: The reaction force does not cancel the action force because:a)2u vpjp1x/a

  14.14: A box rests on the floor of 7juf7;0is (nlcowdi8u* d) fl an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newto)(8f7nulj*iwlod7;cf i d us 0n’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward thro)b qg*d:gtcfu9g; 8i rugh the air with constant speed. Which one of the following choices cbfgiq9;gcutd rg*) :8orrectly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is tj;o wu-boex6 lq:td* 8hrown by a pitcher with a speed of 35 m/s. The batterswings and hits the bal8uodot jbxql6:w -e*; l. 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. Otwobeyj.l.8ij / fr(0n top of the book is a calculator, also aby r.0eio. jf/(l8wtjt rest. Which one of the 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 Physics I class were in lab conducting an expzx tnpupm7wol 8(6//rt;;b qderiment related to Newton's Second Lotnpzb ; (m6ru;ptx8 qw/ld7/aw. 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 ,n5d 5;z6vxcuzg6h8 h vmd3da object were doubled while at the same time the mass of the object was halved,mdc53ad5 x;nzd,6 6z8hgvuv h then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly fr yo uid2*+3cytom rest to a speed of 20 m/s in 10s. The magnitude of the net forcu3+codt2yy* ie accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the ro*axx yxa 3dm7l2uy35wad. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that awy52ul d*y37x 3axmxthe trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-trailez(evss ,,:stj r trucks generally accelerate much more slowly that automobile vzss,,s:ej(t s?

  99.19: A 50 kilogram skater at rest on a frictionlesv v wloac8c46qm4-s q s0um05dnt(x+cs rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent u n(5-dtqoa+4cmlc4vmq068xs v 0cs wmotion?

  00.13: An object near the surface of h s naf/x,78dpthe earth with a weight of 100 newtons is acceleratefx,sh 7a/p 8dnd at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg ihb ma* 12ywk6os accelerated from rest by a constant force of 2400 N. What is the spemohk6*2bayw1 ed 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 rouia4 pr 1m43z(cbf7dubgh horizontal floor before coming to rest. The frictional force actpbr3zmb4cd741a u ( fiing 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 hmshdn8e/x/ q9fh*gp 1orizontal floor befd1x pneh8*// q sm9ghfore coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a hori*f )hs/9irwgizontal surface while a person pushesw* ) fsiih/9gr directly to the right on the box with a force of 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 m/s accelerates uniformly to reb8sl(,6zna2a.i 9sxm tyk 5 vsst 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 of kinetic fx v 5,sas2ay86.k(mbn st9i zlriction between the surface and the block?

  00.21: A car of mass m sli waud8/+ p:obndes 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 abownup: / 8+dand 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 its brakhzx2 75* zpxrves locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction betw2h7px rx *zv5zeen 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 anugmf6s/k 72i3pj4b b bgv8 jkc*pb -i) emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twv)bb *8ppigk4k 7/ fbgu6 s-cbj3mij2 ice as fast?

  99.39: The driver of an automobile must carefully control eacpd3u v 7r -gcp9uj/1j62rlshx (u r/muh of the following devices. Which of these devices can cause an acceleration in a mouu(uvsr/mgh2 3lrd/xj 6jc9 pu7r 1-pving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with 3cw zon2sk)8dwfh- :*zlr-vi3r.tqn a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 2dk*-3r3nnz 8s wivtcfh.:lzr)-o qwm/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizonrqn,.a)/z kkw/zw7fl tal floor. A person called Ted exerts a force T to the rig/,k zzqf.kwalrn/)w 7ht 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 of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal lengt19 gcy6nwx3ydyqw cyuna6 /w++ ac;d*h. Assume that on all track x;3a1c+nguy6 yd9ycqw a+d6ywn* w/cs 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 below shows throf lx(j m:7j3iee 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 over the tracks to th:xljfmo7(j 3 ie 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 frictionlessly along the cum ytp0fg.y+we0a (n0 yjjf0u5rved track from point A to point C under thjwff 0+y.py(muy t j0a0e50nge influence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass oh( (v .lddkjmu /; i*4l g2gqc46whbeb-b z+ynf 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 the coefficient of kinetic friction between the box and the floor if a 250 newton force on the rope is required to moe.*v2gyk6 h- bb wg4dm+/(qlczin hj l(d ;4ubve the crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initid can (jx91*+cj+wbzdally at 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 *wj+1(zccbnjadx +9dfriction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizon5y9iqd + jzqbilxpw k kzz)2zq76+ 48xtal 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 v 4qik2z +ky xb)p7q6i98zx z+5qldzjwarious force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neitao8c(bnna;8usoapk q f5yu;i3hpk+(m 1-j0 nher is moving. Which of the foll8;bn m -fnj(uy1poop qi8kush5k 0(+a3acan; owing statements concerning this situation is CORRECT?

  06.15: A crate of toys remanl+ix:1i.gwd ins at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fw ni+i.l:g1 dxastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?