99.36: What happens 3 6n nh499pedc2szh9 0iwlkwoto the inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of m,jvz 4w+nm zs:.yhq+xatter is one that does not depend on the quantity of matter present. Which of the followixw 4s q+zjzmvn+h,: .yng properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface l)xm ceom6b7s,+ w3yqof the Earth. Assume the Earth has mass bq7 l mms+cx3e6o,) yw$5.98 \times 10^{24} \; kg$ 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. q+51 i rdw67mdeu+xgcme 7 )ioWhat is the magnitude of the gravitat++)dq rwuxdg5717 mei6e mcioional 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 objelj/:qu p4t:: ,x zz,t susyoj0ct’s velocity to increase while its acceleration decreases0joupj xzs/:lz :t,uyt4:s ,q ?

  00.11: A certain particle ung /c+06k o;qimf.t r 5vx3/lwtwa1vvldergoes erratic motion. At every point in its motion, the direction of the particle’sf wk6xt /;lavlr vo1+qc.imw/v tg503 momentum is ALWAYS

  17.14: A block is suspended in the air at the end w5mvj5ahz;57f+pa vj of a string held by a person. The person pulls on the string ufj 7+p5vahma5jv; 5 zwniformly 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 force to the force of the string on the block?

  07.18: In which one of the following situations is the net force consxbg)ip2bz(p7a3mw3rmp t91l57i gta tantly zero a 9) 3a3 5 g(7pipwli2z1xrp7bbgmtmton the object?

  13.28: An object is in free fall close to the gch37l(5 )p x zm50a 5ulh ews pc4kdeq(ja-u.jround. 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 fromx eh(j wkqhp5e0al z )cd7cjl(5uu4s -mp.53a gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 N, 5z2jjzms.-tgd ge:4h and F3 of 70 N, acting on it. The magntg2 -z.j5mjdeg: 4sh zitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and * 5nm-0s0hk*i07plpcicsh y sa force of 10 newtons can be combine to form a resultant with a magnitude of *sil 0-hp*y 5km07sn0sh iccpwhich of the following

  10.06: Which of the following statements is most closely -vgz4pi*(w fx eqn-9hassociated with Newton’s Third Lawqn4he -(wv-*pxgz9fi of Motion?

  95.06: The reaction force does not cancel the action force be0n3i 0 ms k fi7izvvb;tsd168jcause:

  14.14: A box rests on the floor of an elevator. The elevator is accelera:j. p9ut nl((cw+i-0:ndq0fppju v oiting upward. Which one of the following choices best represents the Newton’s Third Law pair force toi 9ptf-ndj u(:uni:v0c+qpl.jp0o (w the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Wps n; cz+br40hhich one of the following choices correctly deshr;c + 0zs4bnpcribes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher wi7(0vafm snca 2syxjl p.-*-e 5omh4h; +wok ruth a speed of 35 m/s. The batterswings and hits tu-75myxalc4+s20-wfmo;( *h ek johrva n ps. he 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. On top of the book is a c:ghln9pnnl0i (*ith.uvma.- alculator, also at rest. Which one of the following choices is( h n:* lva.it0inghmu9- lpn. 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 experi+gd; sbvu6 h,hk (y*l9qt (+qxfp j8nument related to Newton's Second Law. The collected data were displayed on the graph at 6guqt xkhhbj(+ n(9+p;lq*,d fv8yusthe 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 d5 s-qn,y0zob mass ofyn-b5 sqd,oz0 the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kf v smy;q qxjt6 gv*+v67ev1,xg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating ty+v*7;,qv xx qvetgvsf1j m66he car is:

  99.05: A tractor-trailer truck is traveling down the roe-daw4 l3bxb)) cds.zfkm )n+ad. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates fd3s- +zden4)bbkamfw)cx l) .orward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles eng3c 9v2xvw5best explains why large tractor-trailer trucks generally accvxwge 5cn3v92elerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless ril2z,k-zl )+ rmi-/ z ofgb(c0mjx/ svxnk throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequenlxvl ,mgzc--0z(z js )2/ibm x kf+r/ot motion?

  00.13: An object near the surface of the earth with a weiq e)-pjz 2pnvk: cow0t;f3ng:q. 8pqlght of 100 newtons is accelerated at nzcnq2w -::g v);jfq0 ppop.8leq tk3$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelersae0c ot r)px hwo-:97x:,ockated from rest by a constant force of 2400 N. What is the speed of thp9t xohe r-wcascko7,x o:):0e car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizonss6myrk,s sqcc g(qbz9bv+b,05 0z z(tal floor before coming to rest. The frictional force actz+qz q5(bv gs0cy, rz0ss m,9s(bb6ck ing on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with in)vlpnggtdoa 7by/3. 9- l+pe,opfd ,aitial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coeff-t)ap banyo 9/,dg .glp l7+d,3oevfpicient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person ob9 c;-kxew v6l.tk( fct)w s2pushes directly to the )kot9v 2;wscx -6le(cbw .ktfright 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 uxq2tzfkal- 83 (xe0oto rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following cu -lx3kxz0f2 (tao 8eqhoices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across mfy 7dnp h*.xd )2k/qna 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 kinn)mxq f2 y.7dkhd*/p netic 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 speed v with its brab2fsvx /tv 1tmse)7y*kes locked. It then hits dry pavement and skids to a stop in a distanced. The c *7 syve/bsf1tt2x)m voefficient 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 emergencyhn3l4*z(w fh )oo 9mil stop by slamming on the car's brakes and skidding to a stop. How far would thf w3) z9*olin o4lhh(me car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must brre7(mlzw n0)my:g;ed /e6k carefully control each of the following devices. Wl b;egkm0d:r76 nmw eyrz/e( )hich 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 15000 newtons is 24000 ne6vzvi-5mb /wl+ 7gf )yfqckf-t.g0pmwtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Eartz5-+kfg )bp vfg6mv-. yiclwmq0t7f /h at takeoff?

  07.21: A box slides to the right across a horizontal fl+s n 8v-cjzj5aoor. 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 thrvjaj+5-cs 8nz ee forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equalo, jeii9 .eybn ;r*u2s length. Assume that on all tracks the roller coaster carts start fro.n i,je; uyreib9o*2sm 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 rols3 qtm3l:tm / n,fone4ler 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 qt:s3e3m om/ fntln,4 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 rollercoast5ixad szpkq bh68r6+;er cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What r+szb68;q 6xhi a5pdkwould be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across ther .5n/qu+)99,enfcwem w lpee floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefwne c/l59n euewq9p+r)f.em ,ficient 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 by a sby:f,heu6f yj q 1x b8 .hk5ygam;t/: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 blockmeg ky8x:bhq1 fyf5s; / a h6jyb:.,ut after a time of 1 second?

  05.10: A homeowner pushes a law )my ;w0gcc2rjn mower across a horizontal 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 0yr2 gj) c;mcwvarious 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. Whsl: (d 6bbf7 )mtm.eflx/q 0 .ze(lbzpich of the followinepf (e(zb/tll qz6 mb.lbdf :)0m 7s.xg statements concerning this situation is CORRECT?

  06.15: A crate of to5ndzz86lua13 vt7 wx gl5yb)fb f)h;cys remains at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s inc68 3wh z fdf57n ltav;b)gz5ylb 1c)uxrease in speedup the hill?