99.36: What happens to the inertia of an object wher;tbs-jbk0 2ed8xa9 xn its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend o7:8bmt) y xrgrn the quantity of matter present. Which of the following properties is NOT an intrinsicg8rtm:b)7x ry property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Ea: cvo+mxcr0qkr 3nk :;mnu 2i.rth has ma.r2:kn +;uminc:xkc3 r0om vqss $5.98 \times 10^{24} \; kg$ 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 yxov h(9;tkv3 surface of the Earth. What is the magnitude of the gravitational force acting on9xy;t3vvk ho( 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 ioz7+b +obyoo)z:t e0tncrease while its acceleration de) o:tty7bo +zooe+bz0creases?

  00.11: A certain particle undergoes erratic motion. At everdb+ i+h u -:;jf e :8dqfit jke;+jizuh4r1js(y point in its motion, the direction of the particljrejbt; jh4 -e:jfu(zi k sdh1+d8i++q: ; ufie’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by cjjq7 ;39gq4g jjnjtwy ,y7i7 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 c4jyj y97q 7 t,jwg37ic;jqjngorrectly 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 situations is the ne5a9* oxglz o(/ec0yhh 7jv(na t force constantly zero on th*o hcj0795ge/(oy vhxnaa (lze object?

  13.28: An object is in free fall close to the ground. A p5kspzuw2/ zy)9lbp;8 q hgr p0erson intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude ofkrgh z z;p/0s9 )bppwy82lu5q 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 eq4y0qr nn;za /fuilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of/ar nyqfz 0n4; the resultant ofF1 and F2 is

  01.07: A force of 6 Newto6 vs ;1yqvnjz2 eprs00ns and a force of 10 newtons can be combine to form a resultant with a magnit60e2 j1ps0 yqnvz;sr vude of which of the following

  10.06: Which of the following statements is most closely associated with Newt.*yf.gq0x bgz on’s Third Law oq*.ggb f.yx z0f Motion?

  95.06: The reaction forc,mk+ nus)e6/2bevwe b*p;tc s e does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The eleva5k5xab +g/tquboect+ (ofhu j6fx*3(7c+ kmt tor is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on(oxx(q c ko5jufet+b7th u/ma3 5*6fb+gt+kc the box by the Earth?

  15.15: A skydiver fallsva:0 q1ty iwl; downward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Thirdal1:vq0 yit ;w 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 ofwrh3 lixk10( k 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the b(iwhxk1lr 30 kat is always

  11.13: A physics book sits at rest on a table. On top of the book is /jx6 w1 mi4o;uu:t)gk4s guwra calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the tis;wjg1 4ugmr / wx: 4ouu)k6force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an experin5 b7i1 tm )xvhzhw2.ement related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the studex)7hnbe25 zm1v w. ihtnts make?

  99.03: If the net force on an object were doubled while at thja guhsp y 2l/j1 hni39v,04fce same time the mass of t9vj4auhy1ph2/fgs nj ,3cil 0he object was halved,then the acceleration of the object is

  96.15: A car whose mass is ci3)s+m h o)-44l;)mnoi fbbkm9r kqw 1500 kg is accelerated uniformly from rest to a speed of 20 m 3co-)+bk nk9;mfb4 w )mrsqo)i 4imhl/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. T-ce3 bp4qzzk3 (cd 4+i0urniooy f5,ahe mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on p-zy04dzq ( f4 +auce,3irin bk3co5othe tractor is

  99.16: Which of the following principles best expywx tubxzlix-:/ br m);xy0:/lains why large tractor-trailer trucks generally accebmxt/0x:yux;l:)- ixbzr y/wlerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a1kt9rohbb 6m*d 7(kr edk)p +b frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement descr96rd bmb7et1rb(k odhkk )*p+ibes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons is .vsoty 4l9 rt2bu,uy: acceler ur2tsly,:.b4vyo9utated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 s tku 7mw0 r1+pe-8 mtx,e:ehakg is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s , emtp hs1+8amee-wt 7 rukx:0after beginning?

  98.32: A 3.0-kg block with initiecnm6 (k q-m sdf(rj5i,h3ou5 al speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force - ,d jui ek f5smomc6nr3hq5((acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with ix+3i+o24y vdek- fnurdlbhw +, kq4jmcug7 0( nitial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient ofem4bogcknh4+w ,-x(2uku rif 0dv+jd3 yl+q7 friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a personmqop3d- qr8seh/;rin 9 6fqh- pushes directly to the right on the box with a force of 60N. The coefficient of kih;opfq/msh3 98-rdq i en 6r-qnetic 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 4evsq(4pj m2y8 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 res y pv4m(42eqjpresents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slid9 z-vlu00jxr pes across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids tj rz lu0-x0v9po 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 acro(0p88 hpbfpu );u zrldss a patch of ice at a speed v with its brakes lofpruubh8pl0 8;()dp zcked. 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 .

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 - h(va0prhb8,hib*j (4fhxcp slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twicb -jp4(c*hx(a 8b hvp,0hrfi he as fast?

  99.39: The driver of an automobile must carefully control each of *+xubshq +-,ql s(dhil p1 *luthe following devices. Which of these devices can cause an acu uh+l ,b1-q*l(dsih q*xp ls+celeration 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 1 qi+ cto:2vzi4wrme,0 5000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to r :e 4 0i+,w2qitovcmz36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right)2d0w4sepg)ea w uq,u across a horizontal 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 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 e 02eswguwa), p)qued4xerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equk, ;2z3,9hdyiu/3 t st0ftvnher1ztzal length. Assume that on all tracks the roller coaster carts start from rest kzd, ts fthvt9z3i2 ;1h/ uzye3,nrt0at 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 coaster tracks of equal lengbpj 3r haxb b-rlsbh/f8fi)(5dp1s:0 th. Assume that on all tracks the roller coaster 1 pad/:f-r5 8bfpsb bx)rbh3 jslhi0(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 frictionlessly along the cur3 7gqbkk 7-x 65q0j6dqn *uuz:leie waved track from point A to point C under the influence of gravity. What would be ee30zau 6jw*nqgu- id:7xq5qkb 7k6l the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged acrost*byz a: 4rfn6s 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 20 m/t 4*:az6yrnfbs as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is push ml.4gb)jg9q mnqrd+ 9ed 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 friction acting on the block after a time of 1 seco dqgr4l.m9nb9+ )qgj mnd?

  05.10: A homeowner pushes a lawn mower across a horizo:t s-par5(cu)bjr::3 trr h in1v7gbv ntal 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 the1np c:i b3tj::rbgtrvrh75 -(vr sua) 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 a8bk *t mjdz;g 5 rbofcl :8y6xwab3f77 table. Neither is moving. Which of the following statements concerning this situatiwtlff 6 xm;cz8 :kb3 d 77bgjo*ray58bon is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the slei r8 +(8 (oaoa8qezu;7sall ushgh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible f lua ((7oahq8e8z l;r asos8u+or the crate’s increase in speedup the hill?