99.36: What happens to the inertia of an object when its velocity is dou3 ;y5acmy:pj7 g en4wabled?

  02.14: An intrinsic property of matter is one that does not depend )9.7x 0dn5bxyfmqm8zc y(es yon the quantity of matter present. Which of the following properties f70.8b q(xexzs5 ny )mycdm9 yis NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. j53gb; /7 mhxr wdv4k g9qgt(uAssume the Earth has m xb/h3d wgr79g;vj5m k (tguq4ass $5.98 \times 10^{24} \; kg$ 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 fr6 tvk +)whga/ree fall near the surface of the Earth. What is the magnitude of the gravitatiw+vak/g 6hr)tonal 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 velocit.j6z .bfo3x) qo,s lrty to increase while its acceleration decfbj) .osltrz.o3q ,6xreases?

  00.11: A certain particle undergoes erratic motion. At every point3wb ;.r vkol:yjjm:i1 in its motion, the direction of the particle’s momen 1royjmkl 3w.:;ij: bvtum is ALWAYS

  17.14: A block is suspended in the air at the end of a string ep+l* sq.m3xn;dtn 4sheld 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 Third Law pair nx;pdq3* et s.n4sl+mforce to the force of the string on the block?

  07.18: In which one of the following situations is the net force 0 6ayw;y-4lbncypto3 constantly zero on the oba;lc byw63 0t- yyp4onject?

  13.28: An object is in free fall close to th. bc x o(6s9;v9sx q.lackkgg2e ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true abo; . sgv 26.kcgao 9xs9xqlk(bcut 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 3/cgxr+a9:sw q o)3z0u uvabt,0 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resus,g3u+bxvaz0aqcu)r:o wt9 /ltant ofF1 and F2 is

  01.07: A force of 6 Newtons and a for zjd93 v w9od5h.h.flrce of 10 newtons can be combine to form a resultant with a magnitude of whwd.93 j.lzd f9or5 vhhich of the following

  10.06: Which of the foll- .z sipnr,e,towing statements is most closely associated with Newton’s Third Law of Motiontir, sze ,.np-?

  95.06: The reaction force does not cancel the action force becatmz++1;wk5 +-3akbdg(ruc2oadqeaew bo*) w use:

  14.14: A box rests on the floor of an elevats iok y*zn1 u.146uk c xc/b;cbgthn60or. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on t;ou 1c*kci u 0cn64zhbt g/b1xk6n.syhe box by the Earth?

  15.15: A skydiver falls downf8wch*wx 11k *cuo*wg ward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance actingu1hcfw8w*kc* w*1 xog on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a sp w00agne5a j*xptvv2 /eed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that gj5wa0/exa* tp0v2vn the ball exerts on the bat is always

  11.13: A physics book sits at rez4 9yy-,rzp3nxgz7 nv st on a table. 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 yz 7yrg- ,zv3xnz4n9pthe force that the table exerts on the book?

  05.06: The students in rj3(:d;iz (u rwiwd( sa Physics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this gr(:sui(irrd zdj(w 3 ;waph, what conclusions can the students make?

  99.03: If the net force on an obje5;mhiibaqt,1;h .pj w ct were doubled while at the same time the mass of the object was halved; h.a wb,mj1 ;ti5hqip,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is a4dvn: c2yd5brccelerated uniformly from rest to a speed of 20 m/s id dv542rc: bynn 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer tr;- pstvz qn8abtsqk9p-8( vwjsti+54 uck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer appl5q-9tzsttkans+;vqj- s8ippv ( bw84 ies on the tractor is

  99.16: Which of the follz ap yv xe(.o(xs a6o2m+-at,h)j.uby owing principles best explains why large tractor-trailer trucks generally accelerate much more slowly that autosx a+hxv,baypoz 26)-ym u (.e .(joatmobiles?

  99.19: A 50 kilogram skater at rest on a frictionle4 bu0bjz;l ip.ss rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequeji z0b4u;pbl .nt motion?

  00.13: An object near the surface of the earth with a weight of 100 newto :1jlrlt-rq1hns is accelerated at rhjllr1 :qt-1 $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a consmu3utvfx;fr 6:ps* m/tant force of 2400 N. What is the speed of the car 8.0 s after beginninfpxv3:6/rmfutm ;*u s g?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a roms0opb)up-1z st/,4ha+ xj kf :poxy:ugh horizontal floor before com/xk,tpoma)p :xh14+p -s : jufbyos0zing 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 initivjv e*i*92-)qbp v0ufwtb3 q,g3rswf al velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The bewi*3fs0 r*),w-vbg vq jt2v9 qfu3pcoefficient of friction is:

  09.21: A 20.0 kg box remains at r(8w i4l rs/l*wz0l,o-xs avlx est on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the zw lx l0* i4ss-awxrl o,/v(8lbox 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 rest on a nvs( xeffx4byk (tyl,c7-+ i2psv: v9horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best repe +(y(cx-v:nbf4sk sp7 v9t ixfy2,lv resents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m iye/w.xue+p+2a g 9d fslides 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 p/y e+9ewgifua2d.+x 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 acrol(u 6dqzy+gg s-k1kg78gh r-jss 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 jgy8dgh q-u1k6 k7 -z(gr+slg.

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

  04.32: he driver of .59md5o ik (cgz,sbwia car makes an 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 im(sg 9cdi 5obz5w,.ktwice as fast?

  99.39: The driver of an automobile mustcv s1h**k cz-0db0zpd(t4iao carefully control each of the following devices. Which of thesep ci bzhdk-td(40vco**z a10 s 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 *1nw 3is9hu gion a rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 miu9inh31 *wsg/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the rirgp xy /qo6(fk c 8cb/da+j2,ei()yf cght across a horizontal floor. A person called Ted exerts a force T to the right on t8q(jy, gxdpr bcke(y/ c +a/coi2ff6)he 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 coa k9bfw(7iepl b(.g:y*b l gsr(ster 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 the finish.p.bfle:*y (b97(r (wglgiksb
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 equa y+zh *xsk)hjgs:vm11l length. Assume that on all tracks the roller coasjs)vgxzs *y:mh1 +1h kter 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 all,gr cy q36tm)mla, ar,(su,cong the curved track from point A to point C under thtr,ry)cmm ,a l(q,a6c 3,usgl e influence of gravity. What 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 floor by a rope which e(yf:,e) pcmq xrw 2(smakes 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/s as shown in the diagram?y:cx sf,e(2mw(re p)q

  04.40: A 6.0 kg block initially at rest is pushed against a wall / 0a-jza q,t5d/out hoby a 100 N force as shown. Thecoefficient of kinetic friction is 0. //auzd0ahto ,q 5-jot30 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 moplk/,sp:0q saa b7 tre e+nf63wer across a horizontal patch of grass with a constant speed by applying a forcr,en/sb+pa:pk0a 3f7se lt q6 e 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 a table. Neither is moving. :n8-x uxhrb: kWhich of the following statements concerning t kun x-xbh:r:8his situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleighgf6v 8l6bddqt(9uh i q1qi;5a is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for tqfb hg6(i;6q qv5u91itld8a dhe crate’s increase in speedup the hill?