99.36: What happens to the inertia ofd*y-0yl8 ttlh8v+t hdlo q5w9 an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on 2+4oahhdk do od3 me+;the quantity of matter present. Which of the following properties is NOT an intrinsic property4o h;ehd modk2o+a+3 d?

  04.16: A 20 kg boulder rests on the surs:xbue+ .g; cue 5ees)face of the Earth. Assume the Earth has mass + ;euu)s5 :g.eeebxs c $5.98 \times 10^{24} \; kg$ 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. Whe 1v8n/lv1e9; kb ddjhe gj;z5at is the magnitude of the gravitational force acting on thdee/5d1 enh vjg v1bjkzl9 8;;e 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 io*j8oec47 d* po bepy1ncrease while its acceleration decreases? 1*p7jcopby e8 oo*ed4

  00.11: A certain particle undergoes erratic motion. At every pow xc(mp(t04pg ozz igi)1g )s*int in its motion, the di14xcip))(mw ggsz 0 *i( ogzptrection of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a strintkqz) w 1twkw i af9w,z4o0w blp.l114g held by a person. The person pulls on the stwzkwa.ztw9 lq p k t40 ilfww1ob1,)14ring 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 force of the string on the block?

  07.18: In which one of the following situations is the net force constantly znxzl4e:tt z,r06qbf cn+3a b7ero on the ob4f3,etbn + z 7qzax:c6blr0t nject?

  13.28: An object is in fre t-ar,7gb1gv oieq70we 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 the magnitude ofegq ibag1r7ov t-w07 , the acceleration from gravity is g.

  98.03: An object in equilibrium has forw;imbquc-7rw:) -z:0b vxthree forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, ac q: bo) 0-xubmiw-vrcfzwr:;7ting 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 to formf:h3 lu d4;3ij1 j-dgkdpoo7k,gm;jl a resultant witkkm;1ij4p ljug 3,o-;l3d fhod:7 jgd h a magnitude of which of the following

  10.06: Which of the following statements is most closely associated with Nnn 54(6uo5hsgru12s :qjh93 qkdlx g oo j.3maewton’s Third Law of ja(s 4rm1q 3huk3onho9 2s:lu q5dgjn 5o6.xgMotion?

  95.06: The reaction force d xmzu3dw29okm29zakg .kt44fc5i+n does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating ubf g gl6(k);y 1,p0-omffoll epward. Whic -mopyg,egk1 l )o0ff(;6 fbllh one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward throg u )w9x,;o j9gm1 m5hf,xfaeuugh the air with constant speed. Which one of the follf,5 af hgw),9 gmuu9xejom;x1owing choices correctly describes 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 with a speed of 35 m/s. Th)a+) m: 2urk sq(bfc1au x,csoe batterswings and hitsau cb m) kqscs1u:)rafo,+ (x2 the 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 i 2aylkxb *a:fuf+,uv8 s a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that thexu,2ka v fb+fy*:l8 au table exerts on the book?

  05.06: The students in a Physics I class were in lab cd y*6bd e4b-o5jfdwy 5onducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the studen5dbdfyew*j6 y45 -obdts make?

  99.03: If the net force on an object were doubled while at the same ti)x1jd2d+nr2brwre a ( plou7g- )hx 0rme the mass of the object was halved,then the acceleration of the objec0aweo nxbrr)27p+dx hg(j-rd2u)lr 1t is

  96.15: A car whose mass is 1500 kg is accelerated un:a t,k2x/hnv siformly from rest to a speed of 20 m/s in 10s. The magnitude of the ne:k,/ 2nstxhavt force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the t9p jf*h 3ob7veyf b.3orailer is 4 times th.*v93h peb3ofj7fb yoe mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following ,h jukgvn(72m principles best explains why large tractor-trailer trucks generally accelerate much mu h k7(mvgnj2,ore slowly that automobiles?

  99.19: A 50 kilogram skater at rest onyprg1fsy .q; o55tb)6s jfmti3xg m- 4 a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/ioq g6s 4bff;r1my -3s pgx.j5)tytm5 s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a wei7np v z2ffx0v3l1i 4opght of 100 newtons is acxp 47l23 zf1n ip0vfovcelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kjdlex7-z.,j8b:7 bl l sejab-6oy8 kgg is accelerated from rest by a constant force of 2400 N. What is the speed of tj7b -zxjlgd 8 obeell b -ka6,y87.j:she car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides acrossrtxn;ym,t 8pwipqp roz4 rbs*2/q-: ; a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block sl r - s,y*x/iq;pr;z2tbw8mprntqop4:ide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8lgyww rzjf7nuc6unw e,1()5,.0 m across a rough horizontal floor bef,e ,w)7w6 z1nujurw l(ny5fcg ore coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains 2u3m8 x.trzd9fus(k qat 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 kfd.t8 uszru3 m9(x q2friction 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 accelvvezk:2iuqlhfq3r5w z8uzm 4-jpf608 a.(cjerates uniformly to rest on a horizontal surface. The fr :azpq6cvlqzuhz 4f j802-e .jmi(vuwk538 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 across a patch of ice at )yxol)ek - xy,a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a diye o-k yx,lx))stanced. 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 patch of ice at a scutk7z y l3o91x 49v6 41xny:gmhysrhpeed 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 a94xgm1l 7housc: 6 yvt1x9zkhr4 3nyynd 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 emergen /(bc ajyk7vd7;kz db.cy stop by slamming on the car's brakes and skidding to a dkjbzc; /y.ka77vd(b stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automox 35grhyd8 )vts9nfykb :0+frbile must carefully control each of the following devices. Which of these devices can sny9t0g+rv) bhk8 y f3r5:xfdcause 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 4z 14:p ecqdhw,x*lr- qthnt. is 24000 newtons. About how much time is needed to increase the rocket ’ speed4x lcz* t1 .q:tdq4ern,ph-h w 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 horizo 2*qfjb2fx7 qfntal floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a force M to the leftqf *j27f2bxfq, 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 belo/g qrx x6tgtxpg,l 606w shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at t6t g0 6tglq x6xg/p,rxhe 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 cnh 5 q8lb/,mmthree roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation anm mb,lqc/ 8n5hd 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 rollercrgxdzt0) l4o7 oaster cartrolls frictionlessly along the curved track from point A to point C under the ino0g) rt47dl xzfluence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass o5 zbf hkzy2.a:f 50 kg is dragged across the floor by a rope which makes 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 a bky25az:zh. fs shown in the diagram?

  04.40: A 6.0 kg block initp ,qz+d309 nck h81frv6zu)wpauz jk4 ially 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 the brqz9fpz 4unk3,1+p djukw vz68c)h 0alock after a time of 1 second?

  05.10: A homeowner pushes a lawn moweygx:,v4f y1ye4 ot wvt.a b2jurb8kxy2151xdr across a horizontal patch of grass with a constant speed by applying a force P. The arrvug 1bo2w4.taf8y xxt v y,12e45 xkdyr1bjy:ows 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. exy. 5hsfiuif0 d.x-5Which of the following statements concerning thi0s5x.due-ff.i5 hixy s situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is puljmcbx -28aom7led up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase i 8 -mj2x7cmboan speedup the hill?