99.36: What happens to the inertia of an object when itsxt)2v tsf , ye-5xn 3.ysdzi5b velocity is doubled?

  02.14: An intrinsic property of matter is o wbk:qb,q /f)rlrj 2 ql.(jp,lne that does not depend on the quantity of matter present. Which of the followinqr2)wr,jbl.:pjqllbfq ,(/ kg properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. As13i5rq,i)x9ev pc dp osume the Earth has mass )vp5pxic3 q9r ,1oedi $5.98 \times 10^{24} \; kg$ 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 thexou i.63,78ea gkkreb Earth. What is the magnitude of 7k3 eoukb r ,6a8xe.githe gravitational 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 ve1 mzkhl eg-f/(locity to increase while its acceleration gzh-m/1ke (fldecreases?

  00.11: A certain particle unq1 ,tzuhqqe4 ynp8,5z dergoes erratic motion. At every point in its motion, the direction of the partizqeyqn 1, tu8,45phzq cle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end o w0hk 5 lgppvw-o0j3/uf a string held 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 cw upgv -l5jho0pw3/0 korrectly 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; k(gj nrgoa-db(i31k the net force constantly zero on the obj(kignba3k;o( jd -1 rgect?

  13.28: An object is in free fall close to the ground. A person intervenes and s;dlaor*e)( lt,(kg p sxj;. szlows 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 magnit; (pkx rog;.sa*ds,ll(jz e )tude 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 of 50 N, omy rlw4u0s p1f:aj) ng uz087and F3 of 70 N, ac m1g:ol rw807a pyu0 sun)j4fzting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine dr/ml a)1tz pnbu u0/)to form a resultant with a magnitude of which of thz uraunpm0/l b1t /d))e following

  10.06: Which of the following statements i+ t:xw.f32 k7e7mndksu i, wcts most closely associated with Newton’s Third Law of Mot7x e+dtwkk uc3.mn27f,t: iws ion?

  95.06: The reaction force does not cancel the*r8cbw bp+q smnq5:a, action force because:

  14.14: A box rests on the floor of as 2-ua0+/,k hvl5sics1kw tx zn elevator. The elevator is accelerating upward. Which one of the following choices b+ 0 5xkaut,svlz-iws1kc 2sh/ est represents the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver fallswq *9 nq1;fcosmq:yaixh i;1zu3s 76z downward 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 acting on the skydiver during ayzuns3h *o9;qf7ii6 sm1qq:1x c;wz the fall?

  06.08: A baseball is thrown by a pitcher with a sb6ka0w6aqy wt7ium ksh19u4 1 peed of 35 m/s. The batterswings and m7 hatb1k6wyiq 6w41ka9u0 us hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sitsetvu dx6j/y )2k1 4;uyfh4 spr at rest 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 up4);ujyf6evs d4x1/t r2 khy to the force that the table exerts on the book?

  05.06: The students in a Physics I classes-; v cqf:gr6u3iy yd*t 5zy( were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the righz3g*rydc; uv( -q t65ey fyis:t. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the same t9k rwae;iu05bime the mass of the object was0 5iw9a;rukeb halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from r;5 d-ezt-jpioa7oo 1 rest to a speed of 20 m/-itza o;d eop -1o57jrs in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of p/knq5 wlfe1ooo9 ,j(the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force t 9pwf1o/el okn ,(q5johat the trailer applies on the tractor is

  99.16: Which of the following pridkjyv:v(si + y,/ zjjvt-1yb07vhbd,nciples best explains why large tractor-trailer trucks k jbv,si vyv( v -1yz7:0dhj/+jyb,tdgenerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless r)lh 6j;1e of7)x4oj piq y6bjm,pb1njink throws a 2 kilogram ball, giving the ball a velocitybo6,xjboqf)e 1l)6m4 h; p1njjy ijp7 of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface or0a r ,ag)zbw70u 0 gjvok;+tpf the earth with a weight of 100 newtons is acceler0+wo ,aka0)b7jgr;vpu g 0tzrated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accou;n )e -v:ohk3qj)sgelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s af jose ):hou;3) g-qknvter beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across 3okzh7b( k;,mubkse* a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. Hobk;3m,sz ( be7h uo*kkw far does the block slide before coming to rest?

  95.38: A block with initial y79kmcyt; vvc:vw o2 )velocity 4.0 m/s slides 8.0 m across a rough horizontal floor beforec7 tko m9vv:cy y2)w;v coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surfa ri g.b5w tik:d6s3mkmf:+i1uce while a person pushes directly to the right on the box with a foi5 3k g:umtkbiwf r+.6ms:1di rce 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 acc09q2dej9v8k pm;4vmi8 alaxk elerates uniformly to rest on a horizontal surf pa kvjam92 imk q048exl9;dv8ace. The block travels a distance of 12.0 m during the slide. Which one of the following choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides ac5v,s g7n4mpel ross a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop7mle 4 v,gsn5p 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 across a patb uyf.sdvf,f o8o,07 qch 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 yf0s q8f7 , ,db.foouvdry 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 1czxw:a j0wj3 e csp3+o)bdi-by slamming on the car's brakes and skidding to a stop. c3 3e w: cij -)0sa+zbwoj1pdxHow far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the fogfn zsxe;d, v09w.-dillowing devices. Which ofg; ,idx vwn-0s.de9zf 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 15b ;n/h)3 o7ix qr.bfyj000 newtons is 24000 newtons. About how much timnqbo.;b7)3rx f jh/yie is needed to increase the rocket ’ speed from 12 m/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 person c7l)m5 yms2djlalled 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 5myj) 7ll2sm dand 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 length. Askrx,pacd+ ;g3 sume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the x;dkgrc , a3+ptracks 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 rollv ed5b6f) oyc 0m4.mpher 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.5yvco mb)fpm 046deh 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 caet a 3 vokaru;v0ay0a dzj+2(0rtrolls frictionlessly along the curved track from point A to point C under the influenc(d a3ay0+tjakeaz2vr 0; v uo0e 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 whic om 5-ro8 :,tls0vonteiac e4,h makes an angle of 300 with the horizontal. Which of the following would be clos nrc 5i0oo4t-:t8s ,eeolm,va est 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 resth6,pmfhyrx z3 9s7 wt4 is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while 46 wxpz7f,msyth 9h3rthe 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 mower acro bzvuyp:b:wr5e ,r6*rss 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 various forces on the lawn mower. Which of the following relations among uvy:r,zp:r* r wbb65e the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Nevc+k8yb+ , qc rbqd).ev, t4heither is moving. Which of the followint+ 8 cy4rqqdchb+. ,ebv,)kveg statements concerning this situation is CORRECT?

  06.15: A crate of toytzpb)ut x zrd* (0ive7okp655s remains at rest on a sleigh as the sleigh is pulled up a hill with an ipu6 xpz50erv (t do)zb 7*tki5ncreasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?