99.36: What happens to the inertia of an o9 qe:abqm( pvu4)rr x9bject when its velocity is doubled?

  02.14: An intrinsic property of matter ikclw+fj5jwr od,/4/ uf*xy (ms one that does not depend on the quantity of matter present. Which of the followi//o *r5dwjf ,(+mw ujfyx 4cklng properties is NOT an intrinsic property?

  04.16: A 20 kg boulder restu9e-sct toc:/,jrt 2 ss on the surface of the Earth. Assume the Earth has masosc t /9:j t2tcsr-eu,s $5.98 \times 10^{24} \; kg$ 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 Eaqrg8ad bd(e t odl4sw/2:yex e5hi:+ /rth. What is the magnitude of the gydedtd 5: hx/:2l+orswgeb(/ ieq 4 8aravitational 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 velocity tob2tu8wzt+ 4/u owffd6 increase while its acceleration decreases?ozu w+2d648uf/twftb

  00.11: A certain particle undergoes erratic motion. At evzisw qv*vyw3 -1a-ib-ery point in its motion, the direction of the particle’s momentuia*wvs3b qyi -1z --vwm is ALWAYS

  17.14: A block is suspendz7w7,*i dxgu,nuyq e upt42 e,ed in the air at the end of a string held by a person. The person pulls on the string uniformly accelerating the block,7ieugn 2x,upty, q u7zd4ew * 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 constantly zero*pfn+ j -wg4tm onpmw+f*-4tj ng the object?

  13.28: An object is in free fall close to the ground. A person intervenes anoey 8xi:xz5 w-d 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? Twx y- eo85:zxihe 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 of 50 Nt.v*e 9 5gwncn, and F3 of 70 N, acting on it. The magnitude of the resultant ofn95e c wgvnt.*F1 and F2 is

  01.07: A force of 6 Newtons an,l 6hpel8w6*;l +qyy9*z 8nap,ra9mk wopy ojd a force of 10 newtons can be combine to form a resultant ,,j*plo6 ;arp+w nla 6e*lmpk 8z8 99qwy yohywith a magnitude of which of the following

  10.06: Which of the following statem yf33nl1gzg8*+c s kxlents is most closely associated with Newton’s Third Law of Motifg8cnlg+s3xyl31k* zon?

  95.06: The reaction fori4ex8i5j 6n uxce does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The e ekmca,n txe2y+5g 0( /n9zhfjlevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force a2/tkf(j n xg9n5+cy0,z emheacting on the box by the Earth?

  15.15: A skydiver falls downward througl5 ;1mrar px tesf cv(w/s hczaf:66/7h the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law mwxs; v7 fters6al1pz c( ch5 /f6:a/rpair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/sv5 ip*p; + quc5cuylh/. The batterswings and hits the ball. The magnitude of the force that the ball exerts iuv+quppcy l hc*5;5/ on the bat is always

  11.13: A physics book sits at rest on a table. b7fw8o,wq/i6 wz (t1cfzmo xw)as+u :On top of the book is a calculator, also at rest. Which one of the followingou/ w7fqs:a6mb(8zc tfxw,w)1w+ iz o 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 conu(2p;xpns 8-laen xv 9p.gs6 kducting an experiment related to Newton's ( klap 29 un6vx8n-spxp.sg;eSecond Law. 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 object were doubled wh h6k/ y9ck(j e 1tlecg6jy2o,oile at the same time the mass of the object was halved,then cklj 9gejh21,tkyy6 / 6(oceothe acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to m)q(r9fx nz vg eh:(8ua speed of 20 m/s in 10s. The magnitude of the net force accelerati8 vq (ruh(gn e9):zmfxng the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mas7lrowxy.zcv, tud10f0. a :hjs of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on av1y0 0f,ht.ojxu:zdw cr7 l. the tractor is

  99.16: Which of the following prijh h+ 5r+nw nh1t3jn76/h xn;w1xod ysnciples best explains why large tractor-trailer trucks generally accelerate much more sldxh5+y13 t +6 os17h hnhj/jn nnw;rxwowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogram b9k.ebr+fzmz, all, giving the ball a velocity of 10.0 rbf z9m kez+.,m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface :mpm gzo 0 5.p8)u*hujxaf8yoof the earth with a weight of 100 newtons is accezg)8f p8moj. :uapu5ymx0o*hlerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accel9rkj8t 6 2ranmm i/hp,erated from rest by a constant force of 2400 N. What is the speed of thph6jk,/8 r2t aminrm 9e car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides zf5h new/st u c ee .rk5rx8k9)8w7mi*across a rough horizontal floor before coming to rest. The frictional force ac ze ner7uw 8 whtxce5m8*.9s5f)irkk/ting 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 r2(xyfb-: 3*etg g)cpt8n nd xtough horizontal floor before coming to rest. The coefficient of frictiny *(gbtfx 2c )83p-xetgd n:ton is:

  09.21: A 20.0 kg box remains at rest on a hor el( wohm-, h,;h6keprizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the surface i mwreh;p k6,olh h(-,es $\mu_k$ = 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 uniformz+x*10d9sik afpzb (z ly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which op9 zszk (zfx1d0b*i +ane 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 across a patch of ice at y;og gr; hy+vf uth74u+4:ekya 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 dryyh7 geo uhf+yr;ytu4:;+ vkg4 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 kb xan 6qaf* d,c)x62 4izndzc-)gapd:2xd+fbrakes locked. It then hits dry pavement and skids to a stop in a d2 bacdz* 4+ag2zxi )6d: kqx,na6f p-fdcn )xdistanced. 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 :o3jgl1iz ei5knos5*a 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 ti il1:j e*s5k3o5 zgnowice as fast?

  99.39: The driver of an automobile must carefully control each e -bd ormi8n9 oit5 1+a:+kb5c4uqrrcof the following devices. Which of these devices can cause an accelek -ocu+5 84im: nro iqa5drt+becr1b9ration 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 *syyeg0)jk9k rf0 u+55pjf ff5000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 3 g0jff*f fy0k 5+ypuj5r9e)sk6 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A perj;f f8 m, h1lgv9v;izkson 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 a ;,v 18;klifgj 9fhmzvs 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 bn bcy 0/c0q kfyixt4u d.1--w jmin(:celow shows three 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 the finish.y-n1mkt: d-/04fc.iq0i (uwbxnc jc y
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 cbpgt 8zh 4)no9oaster tracks of equal length. Assume that on all h4g) tb8ozp9n tracks 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly alongj/8c*(f2vl- hz dxj cg the curved track from point A to point C under the influence of gravity. What would be the direction l2*-jcgzj vd/xf8h(cof the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a r )zakyx:ying 9vi:/d4ope which makes an angle of 300 with the horizontal. Which of xaiiz/:gvy k:)yn9 d4the 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?

  04.40: A 6.0 kg block :t d ev2,7fq.jgw+d ecinitially 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 friction acting on th wg:.qd+jt,d2eef cv 7e block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower avzsi18- )+ slz/ v+nbk we7pexcross 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 varii+ zze8ke +)n/7x 1sw-vsp vlbous 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. 2ttw d/038svaoja/ a/ zpgerm;2b/htWhich of the following stateme3t2/a0z/ mvgpwtbj hts/;8 2a/daor ents concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the srtz bmz1qcf;4: )pe wh i:xn7lcg td7n,/:d6kleigh is pulled up a hlndqz17p t:wiz7d6 x;k, c :e4chgn f)rmb/:till with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?