99.36: What happens to the inertia of an object an2rsv , dv7:6kg39c7lng pyya)fjc 1when its velocity is doubled?

  02.14: An intrinsic property of matter is one that doq8 k9fyfs* nh1kvua 0:es not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic property?1a*fyq sh k09:unkvf8

  04.16: A 20 kg boulder rests on the surface of the Earth. As m 3 :syk/+3:rp0lta8irnh;c hbhop q;sume the Earth has mass c bnhk:h : pq8lao/s3rytirhm3p0; +; $5.98 \times 10^{24} \; kg$ 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 neari,( qpdgee*, sr rv6h2 the surface of the Earth. What is the magnitude of the gravitational force acting , qs,eipr6v2drg he* (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 acceler -ln(i 6d-rt6qq2wd sd/pxq.n y+vxl .ation deql+p-xy2t dds6w ql-/inr6.vqn dx. (creases?

  00.11: A certain particle undergoes erratic motion. At t f,1oaj ij6j94nqy1kevery point in its motion, the direction of the particle’s moj kfjj411ai 6t,y n9qomentum is ALWAYS

  17.14: A block is suspended in the air at the lc6d* bugsxys7k : d0rcl-t6: 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 ide cbgy l0s7dls*::tx-u krd6c6ntifies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the followingp fm fds:c+,k f k)3m1v;hjtz( situations is the net force constantly zero on the objecm1h+tz)s mff: ckkj (d3 p;v,ft?

  13.28: An object is in free fall close to the ga olzklo -keo+t i:*h*y)9z 83b(hcly round. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the oy*3)l z9h ybol(-kczei tk*a:h o8 +lacceleration 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 o,td-+b;al n l r/iuv1mf 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultai,-/alu+ n vt rdl;mb1nt ofF1 and F2 is

  01.07: A force of 6 Newtons and a force oi7.ewczn ia tw,s7)-hf 10 newtons can be combine to form a resuliwh7csz7an,t. e) - witant with a magnitude of which of the following

  10.06: Which of the following stfjq1m3r2p6 zn hdtqr4*m ipa 3 /*vhx9an39mxatements is most closely associated with Newton’s Third Law of Motion?x9p3amt3pf9 *hjq236r ir*hz m4vn axnq1d /m

  95.06: The reaction force doesn x iw+hqllcu q89ywd.*zc7l *)e9*qr not cancel the action force because:

  14.14: A box rests on the floor of an elevat0yk,sq f714aak ujy)w or. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on the k74 jw as1y,fakyu 0q)box by the Earth?

  15.15: A skydiver falls syg:yj0,q s7q7mfri / downward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance actingqmfsj 0,i:rgy7y /qs7 on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of qdue7dte kww:v4 +c9; 35 m/s. The batterswings and hits the ball. uwc7 t9 4 dve;kwdqe:+The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On totca84zk- q: x zcx9.svclee8( nq,n,y p of the book is a calculator, also 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 boo4y( e.e,cx tk8-znqq9zslx:,n vac8ck?

  05.06: The students in a Physics I class were in lab conducting an experiment 86j h*rp-h a:ibkma5n related to Newton's Second Law. The collected data were disabm5hiranh6* - :jp8kplayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were dou-r2158affgv 7 gr molzbled while at the same time the mass of the object was halved,then the acceleration5zm2r-gol 8g f7v rfa1 of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest toiazdiq)3 e -sa./arsdv 9a90g a speed of 20 m/s in 10s. The magnitude of the net force accelerating the cv30aq)d-s9r.sa i9z dgeaa i/ ar is:

  99.05: A tractor-trailer truck is traveling *os rw 8pax k0m047 tchgr4,pumjrs,9down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the trakcr wms0rx m*p4ha, u 4p0t8o,9rjs7gctor is

  99.16: Which of the following p9y jyiy s4: ;k6ba3odoftu1.principles best explains why large tractor-trailer trucks generally accelerate much more slowly tha.f1 y uba;i6stdy3:j o pyo49kt automobiles?

  99.19: A 50 kilogram skater at reswhf :*vpd g5vo)5; e.k)s nnlbt on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which: bdsh5gnnw ev)*f okv.5)l;p statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 10ln9uj+ ar6o gn:j1 3d,;kmuva 0 newtons is accd;lu6gv9 u31 orknj: jam na+,elerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kgk jx mdjfv9d -5pl1dg;,zf3h522 aeym is accelerated from rest by a constant force of 2400 N. Wh 2d my , vj; 593d5fgj-lekfzahpd21xmat 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 across a rough ho g5i+x gw)wuhc rc/j13rizontal floor before coming to rest. The frictionalg wj+xwi)ru3/ch c5 1g force 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 j z::a9fxokp7m across a rough horizontal floor befokj7 : x9zoap:fre coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontaldc iopoh/ t7cw9xr6 , cw((l0i surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the surfa wpc/lio09w it hx(7c,cdor(6 ce 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 movinqxq iqeva8nzlvg*z/ s/7- (-vg at 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the fo/ s-8vizlnq qv-qgxv e(*a7/zllowing choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across0b gvn*f* xn0z-hlxfr). 8dka 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 coefficient of f)fnxk v-z*rn0 0h.l*8xgda bkinetic 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 c8z +uz7z0dpwm slides 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 distanced. The coefficient of kinetic friction between the ti7+pzd 0 czuz8wres 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 cv6 /p * rgrt7dzpsyeff15l7 a5ar's brakes and skidding to a gpd5vp7ay/61*s7 l zfrfer5tstop. 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 each of the following vwh7*i c9rpr4;2cshx devices. Which of these devices can cause an accele w r;rhs42 7ic*hv9xpcration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rockeza4i)w kn g9-st with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s tow9sikz- n)4 ag 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person call9qoyv -egmvm9- y 0dsa)plm 4 z*e+vu-ed 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 vdyle* -yom9g 4v-pusm+m-9vaq )e0z the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram b1bx ed-/3qm jui/oz t,elow shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and mov-oe 1md/jbt/uxzi, q3 es 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 traco1j o/u/xnm x2ks of equal length. Assume that on all tracks the roller coaster carts start from rest at the saxju xon/m/21o me 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 tpcmfg5 p s06:uhe curved track fr60g csfu5m: ppom point A to point C under 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 ky jx)3(+ ixewag4 inb;j,t43ur hrsmpb5.v,o g is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following wotsxbwr +j)p(4y,o5 ur3mn ; ag4j3ib eix .hv,uld 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 initialx+awpgu 6gklqe*.5hn)oh7 / ply at rest is pushed against a wall by a 100 N forceq5)gupaw. + 6o k* nhg/7lxeph 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 time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizbg41h3ee9n e42rj kqp2 waf1hontal patch of grass 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 the folefe2pnha 2j4 4w193hqg ekb1rlowing 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. Which of t4 1)2m 7y va8tzfjwsj+.nz jykhe followin k8vwz 217+j )sz.aj m4yjftnyg statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pjap mxlxl*.1h)b c*8pulled up a hill with )ajlb .*xp1 8l mcp*hxan increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?