99.36: What happens to the inertia of an object when n*wh y,1d6(ajt v6tgq its velocity is doubled?

  02.14: An intrinsic r 1dq4d (,loyxproperty of matter is one that does not depend on the quantity of matter present. Which of the following properties is NOT an intrinyol1rq(,d4 dx sic property?

  04.16: A 20 kg boulder rests on the sui; /kg)iiuh ch;n2/q orface of the Earth. Assume the Earth has mas;i2h;hkcq) /g/iino us $5.98 \times 10^{24} \; kg$ 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 fallrr3jv vb u j(4sq81n7:(evdrk near the surface of the Earth. What is the js(dr b: rnvvukev43 8jr1 7q(magnitude of 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 t4q2ds-d6ullainzf 69o increase while its acceleration d qdi2 l4z9fl sn-d6a6uecreases?

  00.11: A certain particle undergoes erratic motion. At every point s85+v.,ce blo hsrtln60v y6s in its motion, the direction of the particle’s68cltysshn 6vls o0+rv.5 ,eb momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string* g s o,fs8.03ftjnjf8mhcra+ 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 choices3m *t8 s0jfngf jofas+ h.,cr8 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 cnv qqmi,89f .mp 06kjuonstantly zero on thkqi. pjnu ,fm0q9mv6 8e object?

  13.28: An object is in free fall close to the ground. A person intervenes and syq9vhr88(;ipv 3 id r75ef lrclows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acceleration of the object as 7(r;phrrvf 9y5ed ic8v3q i 8lit 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 fzk yn4,lpxu*- orces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and Fz nu4-py*l k,x2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to fobk 4 8*(56wjxzse .diwq(g wxarm a resultanbw(adeqg.j w(iw*xzx8 5 k4 6st with a magnitude of which of the following

  10.06: Which of the following statements is most closely associated wi9q13k rkbj 1-pkca+lm th Newton’s Third Law o+j1akkqp br -3 l19kmcf Motion?

  95.06: The reaction force does not cancel the action forc uip-o/r)ldp ;e because:

  14.14: A box rests on the floor of an elevator. The elevator is ac5y ,3dasd.:td7 b ietd,rxq(wcelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting ,:y7r.td,5x idtd qa sdw3e(bon the box by the Earth?

  15.15: A skydiver falls downward through the5r tf3v6b) cm lqyk7a2 air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance actingr3m7 2)6yf l5 qvabctk on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. The battersw z,xoiwp34s6vings and hits the ball. The mz36o vp,w x4isagnitude 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 thto 3p .+(bmf +q.m52mxyveqsu e book is a calculator, also at rest. Which one.3qmpmbo(x f s+y2e+m.5v t qu of the following 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 wereze bud d 5 7:)y5zj (-azq6yzxn*.jrrr in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. dd-jr7.rrz*56ya )z bzqj5(xyn :u ezFrom this graph, what conclusions can the students make?

  99.03: If the net force on an o2w , dfiswkk;5bject were doubled while at the same time the mass of the object was halved,then the acceleration of the object i;,d i5skfkw 2ws

  96.15: A car whose mass is 1500 kg is ac )*s.1wbhax eo;5frcgcelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating1ae5 f rh*; boscg).xw the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of thth;q4v6 7l ucb5 ;fwbxe trailer is 4 times4htlqfb 7vw 6c;x5;u b the 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 principles best explains wtwcy+)*y:g w/pila awv9- y) khy large tractor-trailer trucks generally acceleratgpl)9ya)w /+ykywavi* : cwt-e much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogru,swwx . xr3m(e0n:n bam ball, giving th: eur0xn( nwwb,ms3x. e ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight d -80tka i*alrof 100 newtons is acceleradla8*0r ik-tated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a cm-x5x da;k /4lqug69 cg-exl lonstant force oc9-dg- la/x egukl5 6qm x4lx;f 2400 N. What 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 acros83y76j zafyvjs a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. Hoayzj68j3f v7 yw far does the block slide before coming to rest?

  95.38: A block with initial velocit:qg0p2.. ,rcmhseh4 k qc yb,gy 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of24q bphy0s.qe cc r,ggh.,k: m friction is:

  09.21: A 20.0 kg box re/ yuxayo/5 e/umains at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The co o//u5/xeyuya efficient 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 uniformly to re/ tq)plt m:+m0sz wrt1st on a horizontal surface. The block travels a m )z1tm+ptwql/t: rs 0distance 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 speed v with its brakegyxg x)k d-ggc)5;- 6v7 zuetes 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 μu7g5ke)x- xye6dg-g t czg);v .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m sj)f;;.( rlqn *sqqhvqlides 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 distanchq.fjq ;(sl)qr v;n*qed. 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 a car makes an emergency stop by slamming 4trsa bhly3o b *08dt(n0a:kzon the car's brakes and skidding to a stop. How far would the car have(k*0sb8 t d:3t 0ah on4balrzy skidded if it had been traveling twice as fast?

  99.39: The driver of an automo/jp 1sj/dz:4n piv ;nfbile must carefully control each of the following devices. Which of these devices can cause an acceleration i ;1pj/pf4n /jnsvzdi:n 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 nc 38w;l y5 mir o-*v8ckrscdu9ewtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near c35kwur -;*988iy c osdrlc mvthe surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor.wuo:(q 10t4byuo+ chb qhuau*4 +d ,nr A person 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 as the force T. Given that there is fr +crda1bo : wqnu4 u4o*,hhq0uu+y(btiction 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 coaster tracks of-us d :oj12te1rf(y2ggq- 1k5 zqpic ;v-mxcb equal length. Assume that on all tracks teu(o2cr1 q1g- :t;zfq- gbvymc5sj 2dk 1-pxi he 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 be traveling the fastest at the finish?

  02.28: The diagram below :)cf4ix0 ygyotv, w/omk9 d 9xshows three roller coaster tracks of equal length. Assume that on all tracks the roller coastery x) m9fdwkiv0:xco o94g, /ty 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 along the curn.x q7fqno j37ved track from point A to point C under the influence of gr3jon7 7nfq q.xavity. 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 row0 63m j3ur ohgsm78e,:quwdnpe 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 :, 0mww3e jdorms86hu u7g3qnand 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 s f) kh14wv)(8bexfvmp.m u 5kpushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the cob .5)w8 )k(smuk hef1 pxvm4vfefficient 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 grass wift z;e -yhd;,qth a constant speed by applying a force P. The arrows in the diagram correctly indicate the directions but note-df;tz hyq,; 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. W0.7d2/pad*6d f;ywynz elmr-a w * qalhich of the w6-*w yr0 ;a*d maaz y qe7pd./lnld2ffollowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleqd) 2tpw oq*t(igh as the sleigh is pulled up a hill with an incretq qd)wto(* p2asing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?