99.36: What happens to the inertia of a(plyvqpe6 p+ c9mn :3yn object when its velocity is doubled?

  02.14: An intrinsic property o/v;-yi .rpyrm ; fc(/ (jhjopaq4h ;xqf matter is one that does not depend on the quantity of matter present. Whiaq(rmv oi-p; j 4h(jq.h;rx yf//y pc;ch of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests one o)a9bgd,k u)u*bb, 2p)h znf the surface of the Earth. Assume the Earth has mas )pzbbh2n9d euu,*)a, )fobkgs $5.98 \times 10^{24} \; kg$ 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 i/dnw1 g2:ax*t6nfvlu .y 8q6uf wmn3tn free fall near the surface of the Earth. What is the magnitude of the gravitational force actitd xq13nw8u*g./y:f m uwf66 lvn nt2ang 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 its aa,jj p*28 ph5jqgl cc/cceleratiocjjcpp2qja 5 l8gh *,/n decreases?

  00.11: A certain particle undergoes erratic motion. At every point in its mot5iv-.hie9uv b/r x h:noom(:xion, the direction of to.-nh9 :evi/o bx(rmuxh v5i: he particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the en8e0f3df9rouen0nh 6 q* ysl3cd 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 * ncylf u3s0d6qrn89eofe03h string on the block?

  07.18: In which one okrh y 8s*g18m6lw-j4 u rfutf5f the following situations is the net force constantly zero on the objrkt s 8-14f*f8r6huw g5 mlujyect?

  13.28: An object is in free fall close to the ground. A person intervene241 tuuc p97jatkh-qms and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acj7u1h9k2p ma u-ctqt4celeration 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 forces, F1 of 30 N, F2 of 50 Nyzw75gqbu5.y ggw d +7, and F3 of 70 N, acting on it. The magnitud dbuq g.7z5ygwwgy+57 e of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to (m/uvb e/zs 4nform a resultant wite s(z/4 /bnmvuh a magnitude of which of the following

  10.06: Which of the following statements is mostub00vaa6 q:xv v-4vl z closely associated with Newton’s Third Lv-x:0aaq40bul z v6v vaw of Motion?

  95.06: The reaction force does(ddmhb x5 p5+x not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elto;bj wsgr)r14:) y( kpzb aw(evator is accelerating upward. Which one of the following choices best represents the Newton’s Thirdzj pwyk(: twg;b(4)ao rrs)1b Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Which 4 zocq9(lg0/sn4jcscqv()b aone of the following choices correctly describes the Newton’s Third Law pair force to the air resistance actings/(co)(z 90l nvb asqc cj44gq on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. The battersw fit tf01wby1; ./y;ahblh,.a c) hetjings and hiahfb ilfh1tej, 1ty.h/t)0 ;;ywa b. cts the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sc p*zcgl q+ ws;+d4l7we806up0 zivmk its at rest on a table. On top of the book is a calculator, z7 e z*6lv scmw+0l;u0dqg +cppk4iw8also at rest. Which one 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 c8z df6teg((g; z2emz 1h3mkt (t8pi tblass were in lab conducting an experiment related to Newton's Second Law. Thtb(ztkhe2tmzef6(d 3t(i 8g pg; z8m 1e 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 on an object werbo r/m-z7bwl4st:i6 zhi :4qoe doubled while at the same time the mass of the object zb:4mor b7iszloq hiw6 t/- :4was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelp927fv3s mmjberated uniformly from rest to a speed of 20 m/svpbf 9 2j37mms in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The masswd zox/wy9s(*1jbdp 1+ )ws aa of the trailer is 4 times the mas)oazxp+ys bwd( w/91daw *s1js of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the followip*3(x+gxs3j* ihn;(mtrvd i eng principles best explains why large tractor-trailer trucks generally accelerate much more slowly th;3 *x +ge(vp mrt*njixi3(sh dat automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 -0rfv1ifpk,dxr c7gsq -j,a7kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent mot -,c7 k7 jqf-gxdarfp1 irv0s,ion?

  00.13: An object nearc +f5a i4ml ae+hl99ri the surface of the earth with a weight of 100 newtons is accerfc+l9l49i5 mia +ah elerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated )(1dym5ney imycgf7(tdb+0n from rest by a constant force of 2400 N. What is the speed of bgim1t d0+cyf(57y)yen (nm dthe car 8.0 s after beginning?

  98.32: A 3.0-kg block with initikrqzvv y; hzc)c+ :do +vkm4yg,ak/*9al speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is k/+9vyqzvgy a , ch ;mzo)vr*d+ 4c:kk3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocit6fdvvkv+ ip y0(u i3npf/2w;dy 4.0 m/s slides 8.0 m across a rough horizontal k v36 u+2v 0 finpdvdi;fpyw/(floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on,.sdxq/ .l8f b1kv ky21 t;r+g6poy xkv +kfnd a horizontal surface while a person pushes directly to the right on the box with a dt kx+ r q1pvgkb;k.16 o,x y dfy.8/fk2+lsvnforce 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 g jtmd0k7,;o21th u ylat 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a 1ojuh7mky;t l 0t,gd2distance 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 patj527w6wookheu zb, ;r0)vl dcch of ice at a speed v with its brakes locked. Itrwe),co20vl d o 657wkbh; ujz 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 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 wv9qeg uf74tt13z0e iwith its brakes locked. It then hits dry pavement and skids to a stop in a distaf94ee1 7tiqzu 0twv3g nced. 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 on the car's bradcdq prtvf0d+ s +703vkes and skidding to a stop. How far would the catr00c+ svf ddv+d 37pqr have skidded if it had been traveling twice as fast?

  99.39: The driver of an automolu)u 01 3h4xuqpqael9 .-zs mrbile must carefully control each of the following devices. Which of these devices can cause an acceleration in a movin -qpr ua9 s lxzhuq4)m.el031ug car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket4xupzu fx z a-r2abscb56*u9f zmf*lx(t*n;/ 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 at takeopcl;4f(f9 sxna6 uutau-x**/z* f2xb zm rzb5ff?

  07.21: A box slides to the right across a horizontal floor. A personu5z l +(dqeeii(,j sc0l9mwe2nily1* 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. mii ee wl0e2qdj,zu15n9yi +*(lc s l(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. Assu,burst(rwk+27966 8xk ymut,n : x aon .qkovdme that on all tracks the roller coaster carts start foqnrux6y w9xt2v8k,bkd7, a(sk .+trumon : 6rom 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 thrf2,ch:dz * t (s/:nog md8*rwvma9oukee roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlesssommh*: od9w (gucdn/razk8 , 2vtf*:ly 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 6pr7)so1 c1*c(w svdofgb8w a cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at poinbg 8cords*6f1w1p 7v co)a(s wt

  02.40: A box with a mass of 50 kg is dragged acraxs(9g o) qhswyx19l.*e lm (uoss 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 bqxw( lxs91h s(uya) .*9gmleoetween 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 wall i:qwhx z3f ++oj0h r7(xdng95 ezq*d hby a 100 N force as shown. Thecoedh7n+xqdgqhwz90 jf i eor +(h:35z*xfficient 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 9uqwh1i. a fa,of grass with a constant speed by applying a force P. Th. ,faiwuaq1 h9e arrows 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 tm ,pthd,4hn -pable. Neither is moving. Which of the following statements concerning this s ,4,dpnh-tp hmituation is CORRECT?

  06.15: A crate of toys remains at rq1gb9* b/ o,dm8n xyq uu)6isiest on a sleigh as the sleigh is pulled up a hill with xu*ig y,n siq8 /qm)b d1u6o9ban increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?