99.36: What happens to the inertia of an or4;nc: z3evwtvh9ky.y e y9 7tbject when its velocity is doubled?

  02.14: An intrinsic property oucw(dmyxdw8 .k nzx te 7 o2a8590a 15utalu3of matter is one that does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic pr8d7c dn y1u5wk a2mtow0l9 aot3e 8zxuu. 5xa(operty?

  04.16: A 20 kg boulder rests on the s2e/8+s ba;-fn*flw 1 ev xspctab/ -rpurface of the Earth. Assume the Earth has massa82- tlxe1a rnbfc -/spv fwe+/;pbs* $5.98 \times 10^{24} \; kg$ 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. What is64;czn- oollp 0bit1/ ,c quuy the magnitude of the gravitational force acting on the earth by thcuoqpl0ou y ;z,1lc4-bi/t6ne sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to in .v1mt9vtnrd2( obxf8k bs):x crease while its acceleration decreases?or.x1v9xb()8:v n tf2 dbstkm

  00.11: A certain particle undf )vv1oxji4 wmzmb)34 ergoes erratic motion. At every point in its motion, the direction of the wz4b) ivxmv3)fo j 1m4particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a pers2 kwxc;w +g0w)hvq7n isb*ev3 on. The person pulls on the string uniformly accelerating the block upward for a short time. During thi swvi) wxg 7+ b*hk;3qevncw02s 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 conb6uj )jnu 4 bm0wh*vw)g0j3oistantly zero on the 630njwbo4u )bui ) h*0jwvmgjobject?

  13.28: An object is in free fall close to the*7e11agmpa7p ms 8gv k ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true aboutkm8ags 7e7 v1am1* gpp 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 from gravity is g.

  98.03: An object in equilibrium has three fo5nw0pf v i0kstuh( aa 4s+(p.arces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. Ti0s.( t uanvpf+4whs (p5a0a khe 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 form a r4z*ip zb-cq1xesultant with a magnitude of which of cx-4piqbzz1* the following

  10.06: Which of the following statements is most closely associateh: t7abzi*bcd-.i :rxfml9; d d with Newton’s Thirdx:bi-hz.t 9al;d d*b:ficm7 r Law of Motion?

  95.06: The reaction force does not canc7v 5u0k hat/bkel the action force because:

  14.14: A box rests on the floor of qywkx kw;v/ zk,8tm1pzm o,)3an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to1yx ztkm3vmk 8,,/)p ;kowzqw the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Wh b it5a69sqry*,sm1 fzich one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during b1is9mart 6fz,yqs*5 the fall?

  06.08: A baseball is thrown by ky e9aq3 .fm q5b4wj h -8y7u4;alqbcma pitcher with a speed of 35 m/s. The batterswings and hits the ball. h y 47aufb-wqq584 yqm3b9cel aj .;mkThe magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sito(2 g;ix2q jqvs at rest on a table. On top of the book is a calculator, also at rest. Which one of the follo22i;qjxqo v(g wing 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 conducting an exnhng l/z wey9.nn)vpu.j0* b1 periment related to Newton's S wnz).glhy.vb1np 9j e0n un*/econd 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 o0 /giv bqu2n5qn an object were doubled while at the same time the mass of the object was halved,then thq5b g0 uvniq/2e acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly fr9k 3zc pvht6.7r:jbehom rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the car zhtjhck 3.vpb76: e9r is:

  99.05: A tractor-trailer truck is traveling down the road./1/p6btyq l fr The mass of the trailer is 4 times thet1rfl/pb q/y6 mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the followinq1d)q ogupq*: g principles best explains why large tractor-trailer trucks generally accelerate mu*:)ou pqqd 1gqch more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink t4az;z2k 5voqe.zl 3dm hrows a 2 kilogram ball, giving the ball a ve2 ;4vadmlqk.ez oz53zlocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of thou:2myl* h:wf e earth with a weight of 100 newtons is acc yo *2fh:lumw:elerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is tfl2wdy9yi;ehd , qpaug6 a-b9*0 v s:1200 kg is accelerated from rest by a constant force of 2400 N. Wha a6bp*ywsyg,9 lft ; d-qde:hia0v2u9t 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 slidu iqgt -,sg70ki-b la;es across a rough horizontal floor before coming to res0-ati s, -glk 7qgu;bit. The frictional force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with init gcje*i3y5 9 ;e,ujosnial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficie5;j,i3ojsuec9* e yn gnt of friction is:

  09.21: A 20.0 kg box remains at rest on a horizonl*2n i )gge1kxtal surface while a person pushes directl li1g*ekn )2xgy to the right 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 uniforml s-mnw-4sj4wm1n/pidy to rest on a horizontal surface. The block travels awnmp44 nj--s/ d 1wmsi 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 a spoalq(fu1v m.:eed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic fruavqm.l( 1o: fiction 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 un f3:fw;qc) bbb0m0fpatch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. T wq0c )n0b:m ;ffubb3fhe 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 a car makes an emergency sac0,23cey crr1bcfm c;5c u , o+wv5ijtop by slamming on the car's brakeyc55;0,i1 m cea+j b cucwoc r3r2cv,fs and skidding to 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 carf: yxao, p8x :cvoy()rsw 55dwefully control each of the following device c f xpw):5dowavoy85,r(:sy xs. Which 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 ro zobcu:)-kbqx1r:rs 5cket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth atr-:kboq xs bc:)u 5rz1 takeoff?

  07.21: A box slides to the right across a 4,7wnf3:fuva f fpy,jhorizontal floor. A person called Ted exerts a force T to the right on the box. A person call7 3fu, ,vajn4fp: ffywed 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 coao2oqye i;xok tx)gnqj ,b8 /9+ster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlesoxgkn;9)/jxo y8t, q2qiobe+sly 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 equal length. Ak(+ ruz vm2l;v:o)uitssume that on all tracks the roller coaster carts start from k:z;) omtvui uvl(+ r2rest 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 along the curved tpty 4 ntq e28pi;:ea/qrack from point A to point C una 8:e;iqnt/ppeq 2yt4der the influence 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 bv 2z ipl9mh3p)y 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 consh)vz p9l 2pi3mtant 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 100tl7x8e5s/g s x N force as shown. Thecoeffisx8xe l g57ts/cient of kinetic friction is 0.30 while the 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 across a horizontal patch of grgp;m xe(t7+s6f k7ninass with a constant speed by applying a force P. The arrows in the diagram correctly indicate the directions but not necessarily the magnneikf+6;mp xtn 7g (s7itudes 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 - m huvx,a5aaay,+ 7kttable. Neither is moving. Which of the following statements concerning this situation is CORRECTy h5 axt+ak,-ma uav7,?

  06.15: A crate of toys remains at rest on a sleigh a e cly*nrh)x74s 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 the7*x4 ny he)rlc crate’s increase in speedup the hill?