99.36: What happens to the inertia of an object when its velocity is doubt/jp5xx vi:y- led?

  02.14: An intrinsic property of matter is one that doa f,8)b hi.1o fl;gulmes not depend on the quantity .lf,gh;)iom1a 8 lubfof matter present. Which 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 hgo6jznebnrjq: cps) b8 693g(as mass g)pe :bn63znq oj6bgjs(9cr 8$5.98 \times 10^{24} \; kg$ 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 n, kes,4h0g hriear the surface of the Earth. What is the magnitude of the gravitag sh,ki4,0hr etional 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 whileg2xcjm b0 cobm7h50v n00uqa- its acceleration decreas0ocm0 j5xbc07bh qnu v0-ma 2ges?

  00.11: A certain particle undergoes erratic motion. At everyqk j:l*+fa9//fv0tptwz z0 ; cltm7iq point in its motion, the direction of the parti0+z /ft;v /qjztlk7*f 9a:c0 tp qlmwicle’s momentum is ALWAYS

  17.14: A block is suspendemnu6gz8ppu .y d5t (w1d in the air at the end of a string 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 choices correctly identifies the Newton’s Third Law pair force to the force of the string on th6 p(gzyw5utu nmp.18de block?

  07.18: In which one of the following situations is the gf/0m 8zpwe gwm7h-)enet force constantly zero on the objec8 gz 0 )7wm-egwefpm/ht?

  13.28: An object is in free fall close to the grou2f vu tl5t-24m6;j h/fdblmofnd. 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 ;22jfvdtl6hf4flb mo u/ -mt5 of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equ ;uy3qswp a(p;zluk b)go 0v76ilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of thwo7(0s;;u)l zgppv qa36byuk e resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to pj(5+3 b*z/ ;m*vv4zqyqd e oms duy/kform a resulsy/ d kqz e/mj+b3d4*m5y;zquov*(pvtant with a magnitude of which of the following

  10.06: Which of the following statements is most closelh xixr+)ut jc2k-2 h;cyp((ggy associated with Newton’s Third ugc +hx(;hr(2pyt)g -icj xk 2Law of Motion?

  95.06: The reaction force does notnls s yc8qlc p/2aq5 ysh/68z1 cancel the action force because:

  14.14: A box rests on the floor of an ela zd dw1;3yo3pevator. The elevator is accelerating upward. Which one of the 3da 31wzpyod; 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 throkkd.y36d3*qo. rdh wzugh the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistancqzdwkdd. r33yk ho 6*.e acting on the skydiver during the fall?

  06.08: A baseball is thrown 0 sah/ d+1pbzvby a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force bv/d h0s1+zpathat the ball exerts on the bat is always

  11.13: A physics book sits at rest on a uo8kf(bi (,ns k*jrg1nv:vev( of8 -qtable. On top of the book is a calculator, also at rest. Which one of the following choices i:(*bj(8 -k(, u1nq evoo8vffkigs vrns the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Phy:mps ;i6 b.cl(fotr,z)8e yyrsics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on t sit (pfmlro.r ;6)cz 8eby,:yhe graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object w.g5 get1s 2r m7ikcdy -g2asn*ere doubled while at the same time the mass of the objecri2m2-dsg.ya g15ngt*k7 esct was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from res,;hxo;q f0we s,0r bdht to a speed of 20 m/s in 10s. The magnitude of dohb,ewqs;,;xfh 0r0 the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of thzf2x+ dduw3 3(h* tquy hkss;1e trailer is 4 times the mass of the(;1 ts3uq 3dsyzh*h2wd u +xkf tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principlfd;4.hsp 8;du.*8ef qzoa iawes best explains why large tractor-trailer trucks generally accelerate much more sqa;ods 8.uf;.fw d phe8az4i* lowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionlefh- tg9r4j (u5(dxf-ioz qxf)ss rink throws a 2 kilogram ball, gfhd 4f-q(j(r9f)ioxu-zx5g tiving the 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 of 100 newtons fe gw;;w*6e)cprtpnsm ygvt;lk+zlj) 6. 96fis acccp;vzg* pmel .tre+)n6j sg);lt6 w 6fwk9;yf elerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kdt/nqoc50lvfv2l4 z6,l bu .ag is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after beginning, zu5va/o vl0q6d.tnblc4l2 f?

  98.32: A 3.0-kg block with i5ms;rlt + l+ ryw-tsy(nitial speed 4.0 m/s slides across 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 co m ty-(+rlslws+rt5;yming to rest?

  95.38: A block with initiap ng272 s4mnqlx5zcb7 l velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming tm 2bz5c7n7pgnxs q42l o rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person pukkyd mxha, 60z8b;m l.shes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box andzl0b.a hd6,k8 x;mykm 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/ m85prols3/x1dzj vk w ,sr;1bs accelerates uniformly to rest on a horizontal surface. Thzrxv1d,p oslr 3bs; 51mwk8j/e 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 pq, ias6d p5qe1 +ss5 ,bpvin1natch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a ss+q 1i bes5a,dn ,v5pp1 n6qsitop in a distanced. 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 acocr eo.;e fw scsw azw5:98d*9ross 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 coc o eedwrc:*s995 s8 ow.w;afzefficient 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 emergeoe;gbsmn:tk2r bm)-aef- -e ;ncy 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 twice ;o -r-t a)-: gseme ef2mbk;bnas fast?

  99.39: The driver of an automobile must cara +5 (l ou6ntsgjd)7jvefully control each of the following devices. Which of these devices can cause an acceleration in a moving carj+ 7tulj5vog a d6s)(n?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a ro6vc1 6 lmo0d9uh**dzhnsw 8ofcket 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 th*ls1dhmhz 6vc6 f0 wond8*9uoe surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A perd+2py 6jd ,oinson called Ted exerts a force T to the rj6d +pn ,iydo2ight 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 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 coaster tracks of equal length. Assuujvf 7,*.vz gcks(a;qjr;m0p5g cb-y me that on all tracks the roller coaste; 5(rcjysz pjvvckq bufa- .g0,g7*m;r 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 shows threan4. dtc3e swr,evi2 7e 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 finca42e sri,73nt wve. dish.
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 alo *gyv84 ,bdtcdng the curved track from point A to point C under the influence of gravity. What would be ,vd4dc*8b tg ythe direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by x nwd-(ukho48o f.h0da rope which makes an angle of 300 with thewk u8 hh(o-dd ox4nf.0 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 as shown in the diagram?

  04.40: A 6.0 kg block initially at rn +v0y,i2otf a0j;bivest is pushed against a wall by a 100 N force as shown. Thecoeffi;tfvi0 bi+j 0n yav2o,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 grkyd8 )(4kxvu6(g / calyl+ b+dqwp p*bass 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 the lawn mower. Which of pdd w(bl*+ k +k4xb(u/ vqc)lgyy8p6athe following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate kyu p.3,+ddfj on a table. Neither is moving. Which of the following statements concerning this situation is .3 p yf+,kdudjCORRECT?

  06.15: A crate of toys remains at rest on a n9anyp5rqe xp2 y-)jdi8ro.7 sleigh as 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 the crate’s increase in speedup n57n o-yjrie 2.)rp a dx8qyp9the hill?