99.36: What happens to the inertia of an :ckli5b06c6ihy i .qfldj;g1 object when its velocity is doubled?

  02.14: An intrinsic property of matter is m5rdzwtf utj0p2(ba k(0g:f c5x2 e x,one that does not depend on the quantity of matter present. Which ogazk d(xfcfj: 20x t ,bpwu5r t0(5e2mf the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earthi6nb.ce 5( lnyuo1r p0. Assume the Earth has mo16uecbpyn(0rn .l i5ass $5.98 \times 10^{24} \; kg$ 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 surfacjv8r5b pi8xc5 sb+c r*e of the Earth. What is the magnitude of the gravitb 5vr*r5+s8i8cpcb xjational 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 t)o +/avkr*v wits acceleration decreasestvk +*w) rv/oa?

  00.11: A certain particle undergoes er 1hzhepcb,nu9 8bwj-64a*2hhi-xw x rratic motion. At every point in its motion, the direction of thz4 wj2e 8axx rp9hib,1cwn hb-*u-h6h e particle’s momentum is ALWAYS

  17.14: A block is susp,e;k5j/dke f kended 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 k eke5kf/,;j dfollowing 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-f2t.u11qxrpr5q ozl constantly zero oq. 1prqo r5 2flu-xzt1n the object?

  13.28: An object is in free fall close to the ground. A pe+ukif9h -okg0d7* m r:a;qybz rson 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 om zk; h0:fqdiur97ky+ -g*a bthe 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 forces, Fkqesz2)3**aite-f d q 1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of sdt* 3qzkf*q2e -)iaethe resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force04dev, uw:1cf0 a2y / )dr,q4thyfryl3xx uef of 10 newtons can be combine to form a resultant with a magnitude of which of the f)d2:hyff,40l0y x3dx /yfqeaw4ru vc 1 r ,etuollowing

  10.06: Which of the following statements is most closely associated with Nlap6 c;z rq5p-ewton’s 5lq6a;prcz p -Third Law of Motion?

  95.06: The reaction force does ncw77 j);da vcwot cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is acck t*cy-sz0ac kz.(jl, 9j1pjdelerating upward. Which one of the following dj(cy -pj.9 zjs ,*kaz 1kltc0choices 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 throuohsr lxzh v;3l95b 70kgh the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair forc5lz;l v 90shbr x3k7ohe to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitche z3/isb,o9atxr with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that th t9a3/s,bxio ze ball exerts on the bat is always

  11.13: A physics book sits at rest oop:hj1+e/m x1a7h)hyl)q pj k n a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third h1)h:a/qkemph 7 pxjj)y+ol1 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 experimentp;j(u en 9 w4en /o;mupo9 cgav-wta.4 related to Newton's Second Law. The collected data were displayed on the graph at the right. (tcwo;-vejpa. w ;euga9m4 /pun9 no4From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the same time tm ,lr),/;arw7mt qiiwhe mass of thelimqr7 ,i w,/ w;am)tr object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated un1gvt c.0eaxb(awg z/jv2 4mb-iformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating thetxc4/1 vwebj-g0 amza.v(2 bg car is:

  99.05: A tractor-trailer truc) pgk4t,r8 f)1z tn4 (vwxkybyk is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor acc 4x,t kpbynw)z vr)tf4kyg 81(elerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the followingvr;;.c 3l9br/k)anp1e k ml mz principles best explains why large tractor-trailer trucks generally accelerate much more s .ar ;l/mk)rpm 3;e9lnczkb 1vlowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogc os* y oc-eku0us+w/wnn0-;cram ball, giving the ball a velocity of 10.0 m/s. Whinsuo*-cc 0;wecouswk+0 - n/y ch statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons is afo f3iynk 8af4ikq,;+ 4;oin ff+iy,8kqkfa3ccelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 cet-7guzkx2 -u uk)cfl6o. 8tkg is accelerated from rest by a constant force of 2400 N. What is the 6ul7 zck82- tfugc.k)ut-exo speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speedyk-voiub x+4 0oj:/ va 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force / iyou ax o4+jbvk-v0:acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m acros)xurb:es)v r 8k0 bu*sp b,(yss a rough horizontal floor before coming t8e)(* b)rbs,:x0pr ksuubv syo rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on kertf, jned ce.*,6k -a horizontal surface while a person pushes k-dk6ee,*t,fr.j c nedirectly 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/sbah;tx 2 b)e*e accelerates uniformly 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 co2*x ); hbeeatbefficient 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 ity d5o3,(cae bks brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic fca,o 5e by(k3driction 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 speed v with its bcmu82epg / p2prakes locked. It then hits dry pavement and skids to a stop in a distanced/ mu2ce2pg8p p. 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 emergengx6 ruv.xar rrm(s5;,:nan j,cy stop by slamming on the car's brakes an a:6n ,,gxnmursa .rxr5v;j(rd 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 carefully control eak am y+m td+u1)i0dhb7ch of the following ta0ihd bk+d1ym7)mu +devices. 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 gftg-ary;+ q; a rocket 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 thegy-;f agt +rq; Earth at takeoff?

  07.21: A box slides to the right across af tyu1nv/eh (2gii3l, horizontal 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 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 thr,n/u3 ehfigviy2 (t 1lee forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of e/r-a844 qy qxwt-*. xq e/jbcclap (hxvfeo ,/qual length. Assume that on all tracks the roller coaster c *c,hx/r4/ ax ( laejtvc-e- .q ypwqo8fx/q4barts 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 three roller coaster tracks of equ8txl;dpi1ckq*sx57 i1e.qlxa8 om d 7al length. Assume that5ox1 xpia.1esl77 ctk8xlid* md q8 q; on all tracks the 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly along the curved t. xdezxd- :(5:wz lar4jc; iayrack from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at point;dx: :(yad4w lc z5-iaxrezj .

  02.40: A box with a m.o9j h6zk k/jva.cn6tsmsj (w:-qs:pass of 50 kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following woulm 6k9t/:anw :jv( ch-jzsspj.sqo.k6d 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 wa)rkmf, +e,pz ull 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 block after a,k)pref mu,+ z time of 1 second?

  05.10: A homeowner pushes a lawn vje*pg/:fe p yv*:z nj/0 xj.d+opz*emower across a horizontal patch of grass with a constant speed by applying a force P. The arrows in tj jd+efv0:pjp/ * *o:/zxpvnez*ey.g he 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. Nepi mohu l0h/xs7g,l+05 + yprsither is moving. Which of the following stat0prplxsm7/5yil +gusho ,h0+ ements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on(:kxm)oqjz;-ep uz f k.y)7kn a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleighk:mzn7) .qoe(y zu jf)xp-;kk . What force is responsible for the crate’s increase in speedup the hill?