99.36: What happens to the inertia of an object when its gky/w;o xk :9dvelocity is doubled?

  02.14: An intrinsic property of matter is one fa.m3g:pfnlnfzc(88./r wl wdg v z 0+that does not depend on the quantity of matter present. Which of the following rwgfw3p8.8avcn df 0.f /nz:z lg+(lmproperties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the f4ou,ulg- j 5esurface of the Earth. Assume the Earth has mass 4g uj- ufe5ol,$5.98 \times 10^{24} \; kg$ 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 surtchl -ge3 0+go+ w)snpv:o gi6face of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Eartg hv0isngc3ewp +g +o6:l)o-th mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to q z03mg(0 f.6yi10ebv mc usdnincrease while its acceleration uz1ngfy m0 d (es3q6m0 ci.b0vdecreases?

  00.11: A certain particle undergoes erratic motcx9sc cil3u o;,i- y(fb,sw5u ion. At every point in its motion,fu;c5ic,,w 9c 3l(yxsi soub- the direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at ;o+d gs*tle-ithe end of a string held by a person. The person pulls on the string un-leo*gd ;t+si iformly 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 the block?

  07.18: In which one of th )9jrwe gw:do+e following situations is the net force constantly zero on the object?: d)g+o9 jwewr

  13.28: An object is in free fall close to the ground. A person intervku(dbzlh4ieaaco.; ;+0 h /ki.fdfr (enes and slows the object uniformly to rest. Which one of th..dir f+l4; /0e(uch( fakhzi ;akd boe following statements must be true about the magnitude of the acceleration 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 i3 *n hm0cvua,50 N, and F3 of 70achn,0v 3*mu i N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons p9lik5 (oh3iypmoh stau2b-z,m- i61 and a force of 10 newtons can be combine to form a resultant with a 1pmtio 5 -hlb h6iu9kp3,z2imoay(s-magnitude of which of the following

  10.06: Which of the follof2) yx qa/m6sowing statements is most closely associated with Newton’s Third Law ofx)6o f /ay2qsm Motion?

  95.06: The reaction force does not cancel the action f h4dr)kgl*2gqc6.) zapvzg n .orce because:

  14.14: A box rests on the floor of an elevator. The elevator is acce;bd (qm/uxy;b v,vix)lerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitation;du)yib;b xxm/ v(qv,al force acting on the box by the Earth?

  15.15: A skydiver falls downward through the aih6igrs8ptivi-* ;f ;br with constant speed. Which one of the following choices correctisg 8vrib*i;h6;f- ptly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown 3i d1xjsyb: i6by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that dxy:i6 b1 isj3the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a cvtaz(m6bjx 1+x2a5 t lalculator, 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 bo a 2tm516vxajx(lzbt+ok?

  05.06: The students in a Physics I class were in lab c,8y vln70 cfn kp9/y .*kqrmfqonducting an experiment related to Ne.7lc,/n k *fqf pqrmk yn0y8v9wton's Second Law. The 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 were doubled while at the same time t2hovo.y8n . vwhe mass of the objectw.v8o2.n ho yv was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniforml a maetn*)d y9 i)ja6-p)ihibmiv ;o82y from rest to a speed of 20 m/s in 10s. The magnitude of the i t)maa69- j )pi2omid) ;eyvnhb8ai*net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. Thewi.)ds 8x 89onvbzs:v mass of the trailer is 4 times the massz) . :wn9svisd88bxov of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following pkq*er cn;pv.ht8 06fsrinciples best explains why large tractor-trailer trucks generally accel rfv *p ce.n;h6s8t0kqerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 6beu: 4vo5adyx 0 6bdkwj.c*f kilogram ball, giving the ball a velocity of 10.5b6ajbvo cyd6u*e4d:w .xfk 00 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with+ bn+/w :yofjl s5 g6nmk5xiu( a weight of 100 newtons is acceley+l n(n:wgmf 5k/65ib j u+xsorated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 otk;c7cdl i.i3+tw :kt0y z.mkg is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8zt7t+m: kk; .ct3ow. ydl0 ici.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough +;ggf 42p;zhimi sqx4horizontal floor before coming to rest. The frictional force acting on the block xfs 4ig4i+ z;mph2;q gis 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 across a 52rqtlh6 r5s,mlo03e1i i+zhi rwg4irough horizont0 i+o q,hs46 rihil wr 5m2l5terz3i1gal floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horiz tmtu :oo2d3ew ux22 qf+y-)ha2byd) lontal surface while a person pushes directly to the right )d-ht+ bt2)omoaywq32d:uuf2lex2y 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 b9l/75 wpnc0n* vcfup 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 following choices bestc9*/f5vpcpb w nln7u0 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 itycyg99l1(v;3qo o t ;dzvicp/s brakes locked. It then hits dqplo;oc13 9y9v /;t(dzygvc iry 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 sp h uvki0f6;a*lrs08m+b)x tkqw*8ilteed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic frktlvq0*+aliu0 ) tx w8ikb hsr;* 8f6miction 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 cvkv kt+e2j;)j 8ci7l bar makes an emergency 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 a7b+c;v lij8kte kjv )2s fast?

  99.39: The driver of 5gct/0g j :jhqan automobile must carefully control each of the following devices. Which of these devices can cause an acceleration in a mc j:/gq0jh5 tgoving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rl2m ku 59+5 rdldntgva0 4s/eyocket 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 surfac s k9und erll0d4av/ y55gmt+2e of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. Ax )me)1qz:b vj 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 size)b)qmjvx: e z1s of these three forces exerted on the box.

  02.27: The diagram below shows three roll+5-bw qv7t, er+zdl;va4n bcn er coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevlv z-nbd, +ba + 7q45ecnt;rwvation 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 eq4 w 7w/6x(c+0w pur6xu4vcn9dcgytw v ual length. Assume that on all tracks the rollerx0(uncd 64c 469g r p/vwyvwc7w +tuwx 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 cart pdahsh2heupe)( 3*u wrm) .r+rolls frictionlessly along the curved track from point A to point C under the influence of gradhrhw 23 ua) pe(mrp+.)us h*evity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg 45lu (vwly;im is dragged across 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 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 5 iy4l(u;mvlw m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed againtvkscr(nd 9/jfmg)(: n6z5k ast a wall 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 dkgcv9fm (5)a j:6ntzsr n/(kacting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grz + 7ng9wrngo -m,ts5nass with a consnrontm +-gn s 7,59gzwtant 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 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 movin (r1/ag7 emgw e:tlzp1g. Which of the followi:g ermz711lwt p(ga/e ng statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a slekdevmlvd q xj4:0 ih2gf gn 2;+.mwqe e6.:qa0igh as the sleigh is pulled up a hill with an increasii.. avw k6qxd4le0 f::vh0gj;enme 2g2 m qqd+ng speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?