99.36: What happens jh2y8 qmu *5dqto the inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does no s7 u;l11q-lrlw hsvv9t depend on the quantity of matter present. Whiv9sqrlv ; 7uw1l-hl1s ch of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth dw*e j6uy(o (qq7;ey)oh au/h has made*eoq u/( ha6 q)7oh;y j(wyuss $5.98 \times 10^{24} \; kg$ 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 fred3lkrg ecl3hp v-3 9 (bwctg*+e fall near the surface of the Earth. What is the magnitude oftk 39c*dwp3g+erh lc l-bv(g 3 the 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 velocity to increase while its acceleratioxxq1w) jha(jol 7mx6*7n y 0c a7kzc5znmnqzxk z7hc0c7x5yj6)j1a7xa * wlo( decreases?

  00.11: A certain party-s2kzl8 om w(icle undergoes erratic motion. At every point in its motion, the direction ofzy(s82w m-lok the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held gvvob a00(;/ 1uep f7+izhvht 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 force to the fobvp1gte/u7f zia 0(v0+;h o vhrce of the string on the block?

  07.18: In which one of the following situations is the vf:j b y57stnw+elt,a 1f+o1pnet force constantly zero oyfjtl5net +fs+, 1pw b1vo7 a:n the object?

  13.28: An object is in )wi*39bkhxw(( 5b 7xtsuki phfree fall close to the ground. 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 thtu kxpwhb5(7 iw(kih* 9s3 xb)e magnitude of the acceleration from gravity is g.

  98.03: An object in xii4 u-+muo5yg1- gja tgc)i(equilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnituoay ig(ti ) ij1+-mcxg5 -ugu4de of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be wn3 cy sj)2gsty26g*lcombine to form a resultant with a magnitude *sglcgw j3 )6n22ytysof which of the following

  10.06: Which of the following statements is most closely associated sve j73b vo3mmw63 6uswith Newton’s Third Law s u67336vmebsj3movw of Motion?

  95.06: The reaction force does not cancel the action forcey 0xb/5yvtr gfbik r*9 29;4 cjl5mbqo because:

  14.14: A box rests on the floor of an elevator. The elevu*c i3 zdiol wdi46k g(1cp-y-ator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force cz( - iwligp i-kd y31oudc46*acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constowpcxnw fj6lz. 8kr bic:p4-1e ;ybz074py2a ant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on.b81wpyi44bzx e rc-; jzfkpa lp :y0w72c6on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed o./qfcdj;2 qpof 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ballqpcj/ f;q2.od exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book -p1 0,e(jlx2sndt qtais a calculator, also at rest. Which one of the following choices is the qa1lstn20dp-x, t (je Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I cl6/puy,hrf wea z* )9lpass were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the righhy/p f)zuawr6,p*9elt. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled whileo9fu9rciw,me w g8 43l at the same time the mass of the obj4e l9 wwmcr8f i,3gou9ect was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly f ssej1plu,x xu8 ;+b1srom rest to a speed of 20 m/s in 10s. The magnitude of ,usxl811;suse jx+bpthe net force accelerating the car is:

  99.05: A tractor-trailer truckn+wyz:yxb0. x is traveling down the road. The mass of the trailer is 4 times the mas0z :xywyn .+xbs of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following pre16n5x ajua7h inciples best explains why large tractor-trailer trucks generally accelerate much more slowly that automoanuehax j7165biles?

  99.19: A 50 kilogram skater at rest o d z i8*6xo+1nolc5sngn a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which state 6cng 5zs1i+onxlod8 *ment describes the subsequent motion?

  00.13: An object near the surface of the eax/-ad(i6w1m4 lv;/w o9b,ycfgmerw q rth with a weight of 100 newtons is acalqm96gm/ ie;1wo(yr bfwv, xwc d-/4 celerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mympl )8l we3r9ass is 1200 kg is accelerated from rest by a constant force of 2400 N. Wha)em8py 3l9wl rt is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides acrosl9u7rc hj vm/vg;10uws a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming l7hr 9cu;01vjmu/wgv to rest?

  95.38: A block with initial velocity g0q v a)+ 3powcu5rl.y4.0 m/s slides 8.0 m across a rough horizontal floor before comingo+q5 yr)v0 ula3pgc w. to rest. The coefficient of friction is:

  09.21: A 20.0 kg boxk41up e7pv+ nu remains at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic fricnvkp+1uu 7ep 4tion 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 uhps uthgk*gxy2dx jl7r4 0ms4b25)+ hniformly 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 represents the coefficient of r7 sghhdbm4j4x* p0k +s2yth luxg) 52kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a speet85;h w*/ape93iz;skgw iw z vs-*erud 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 h re *vz/ 3- ;ui*8wkpsagesi;tw5zw 9is μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of massudl bme7 j4 dwk1krq+x)b 5g63 m slides 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 between the tires and the dry road is 3 q+xw k7br5u6j4delgb m)kd1μ .

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

  04.32: he driver of a car makes an enzy(n/t1nbr 3mergency stop by slamming on the car's brakes and skidding tob1t/ny 3n rzn( a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control ctg h :.ht5z(sw7(p)*j6 dgjp sl3b eqeach of the following devices. Which of these devices can cause an acceleration in 6 :j jsphcdt.(be3qh g57)psw l(g*tz 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 newtonj5sza6m-t9k f s is 24000 newtons. About how much time is needed to increase the rocket ’ speed fa69m 5kzjt -sfrom 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right ac11e jk -hmos5eross a horizontal floor. A person called Ted exerts a force T to the right onksoh ej1e5m-1 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 exerted on the box.

  02.27: The diagram below shows three roller co-sx4 v0pu nzo2aster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest- u szn0vo24px 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 roller coaster tracks of eqm( ubpm,s+uw;k09 soa ual length. Assume that on all tracks the rollemu s;9 u+, (wmspkoab0r 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 roll 27tvr:qg oe(yercoaster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would o 2v7try:(geqbe the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across thmw*;6j jwlpw b d/rb oel;;3k+e floor by a rope which makes an angle of 300 with the horizontal. Which of k3pm;oj/ebd 6wlr+; ;bwlj* wthe 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 initially at rest is pushed against a wall by a 100 N 5klv /i2t 0p o.yid/2 sreh4fmforce as shown. Thecoefficient of kinetic friction is 0.30 while the coefficiepmk y fe/htl/o dsi4250ri2v. nt 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 la m),yndxxpi ju22.m-hohh*/c6f u u,awn 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 various forces on theunym22ufa6 -i m*ju),hx dx,h.co/p h 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. Which o ce uz)l,.eo-of the following statements conce). oelo z-uc,erning this situation is CORRECT?

  06.15: A crate of toys remains at rest on az. 3st1;c (q n::j.t6vwejxsna r s;ld sleigh as the sleigh is pulled up a hn sl e 3.t1zq:sdsavc :nw6( r;t.jx;jill 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?