99.36: What happens to the inertia of an object when itsq6. wx:svse*c velocity is doubled?

  02.14: An intrinsic property of matter is one that d *fl* ):+ab io7dgriwwoes not depend on the quantity of matter present. Which of the following properties is NOT an wwb:a+ i) *7lfio dg*rintrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth has m.sa hnr.,yu 0m) i(s nsev;pl6wa1 9mrarrun,m(yn6.)0h.; svil19wa s s emapss $5.98 \times 10^{24} \; kg$ 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 surface of the Earth.7)hzqn0eib 2rd52 aj p What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth mass bh2aeip75r0d j nqz2)is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase wd :j td2c5ul9fhile its accelerationjt 9 lc5d2u:df decreases?

  00.11: A certain particle undergoes erratihgekah8n2.jp16 lg: xc motion. At every point in its motion, thx l:6 2h8ge1ng.kj aphe direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held bq*hl7pt. t( wkm)l p4k:-tls by a person. The person pulls on the string uniformly accelerating the block upward for a short time.):4tk tt7pmq*(l b -phls. lwk 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 the following situations is thoq1dloqw;15j c t 0h,3js ,dpex .ktb5e net force constantly zero on.jwq 0oed5qh; b3k1tpdxj cts,15,ol the object?

  13.28: An object is in free fall close to the ground. A person intervenese k93:pn cxplm5) /:: ;f5 egicb.yxtlmgjv:u and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acceleration of the obj plmp 9jcvimnugf/:e ;g: 35:5bxceyx)t :k. lect 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 vsi :,sj/x2n o znged ev;705wN, and F3 of 70 Nj iz/ n;e2v7wng 0 s:5,esvdox, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to forwk ; ns;n..oql;gfr:q m a resultant with a magnitudefl; n;onr. :.gkqwsq; of which of the following

  10.06: Which of the following kfk ugr+x x13)statements is most closely associated with Newton’s Thgu1r3xf+kk) x ird Law of Motion?

  95.06: The reaction force does not canceo ) vi 2,y3sscq4me6lul the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelaz6,mq/cirh)kdz1i i: eg/) y45 ld bnerating upward. Which one of the following choices best represents the Newton’s Third Law pailk6q niz r:h c45a/ dgy1,z/deb)ii)mr force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls doww5*4sqjjpp g 8nward 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 acting on the skydi qwj jpp84*gs5ver during the fall?

  06.08: A baseball is thrown by a pitcher with a speedx v*knm f/r s8:fvgq5c1-e6aj of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball e xrqjvgs*v5-ce16: ak/fmnf 8xerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book isajn3llmz3 l/fxw:/*r a calculator, also at rest. Which one of the following choices j/xwrl3:*3lzal n/m f 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 class were in lab conducmt 05urs 33eb ya2tvv-fq as;:ting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the righ3y vsr25 3s ;:m tauvqbat-0eft. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the sa htu 0ox zp(6p-;bz(snc qk,h;me time the mass of the object was halved,then the accelerat-(tpq;u6 (no; pkx0z, hbzs hcion of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly sl-ifw oat*8: from rest to a speed of 20 m/s in 10s. The magnitude of the net force acceleratia*-fs t:iow l8ng the car is:

  99.05: A tractor-trailer truck is traveling down the road. The madwdj c 5mzy*18ss of the trailer is 4 times the mass of the tractor. If the tractor m5ddc*18 zywjaccelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the follo fbe6y6( 204ezxk tedovhc ,q*wing principles best explains why large tractor-trailer trucks generally accelerate much more slowlketo4 2( z q0c*h, 6vebydex6fy that automobiles?

  99.19: A 50 kilogram skater atwaonk1hl:uvojim x -zu* 7*7 fl; -dg- rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocityv- -77z;*lx ml 1*nkoudhfwj-uo:ag i 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 newton/ kjgrvpb:lli/ mg5lb t353. t+vrt j4s is acceler+3blg r:5m/ ttpj 3rtj4l./ b5lkvgviated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constant fd7jqcc fr xr--zh5 /v/orce of 2400 N. What is the speed of the carcx/j q/rc7h--df5 vz r 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a /mr ah fr1(bkn8u)mn+,s pjb+7 dr/ecrough horizontal floor before coming to rest. The smb marrp nndbe1j/ 8+,+r/u(7)ckhf frictional 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*b/in.iv2da z/s slides 8.0 m across a rough horizontal fl.2 * zbidvani/oor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while 5gt,kvc5c vd1a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic frictig5 v1t v,5ckcdon 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/s accelerates uniformly to rest on b8t 9sg/0ngw 7dxwsk9 a horizontal surface. The block/n89kdwgxbtw g 9ss07 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 patch of ice at a x;r.aqkli4d c*ot+98) j- jbb vfdly2speed v with its brakes locked. I4jv*+l2b b.;ixyfcla8jdrq )td o9- kt 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 -*7u f7 p;nsddu1iqxs with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic fricxd1sdi7;n p-uf* q su7tion 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 c+no0lzgac/+p ar's brakes and skidding to a stop. How /0 zgolpn+c+afar would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully controgkw9t88 cg f(ol each of the following devices. Which oft w8 c(o9gkfg8 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 a roch3k*s9 1s iknm3rjl3eket 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 Eart1l9j3s*ks i m3ernkh3 h at takeoff?

  07.21: A box slides to the right across a horizontamf6p yv ec-( *u zym(55+eioojl floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a fouzio cjemm-( ep*yy655o (fv+ rce 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 rol oc-n(krlc)4 puwl 2)nler coaster tracks of equal length. Assume that on all t)cnc(llun2 o-4 )wkr pracks 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 be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coaster tracks of equalg f60acifea89 length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frf06ei9fca 8ga ictionlessly 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 traal33apowe k f6 exp85:ck from point A to point C under the influence of gravity. What would be th3xal6ekf5eo8p3wa:p e direction of the cart's acceleration at point

  02.40: A box with a mass of 549 c cabzhe4t20 kg 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 m/s as shown in the diagram? tz ch9eb2c4a4

  04.40: A 6.0 kg block initially at rest is pushed against a waa6jj4pi6+rvn ll by a 100 N force as shown. Thecoefficient of kinetic friction j6rp6 aj4inv+ 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 across5b- kl suoxw vm51k)e+ a horizontal 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. Whim+kbxw1o kl 5v5s-e) uch 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 moving. Which of th mfo0igtjj;z,iel4/ wouu8p 97 i z((de f(tu ,lw9ioi/ 8 jg(j74 omiezu; 0pdzfollowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at gh 8f5p0jimij56d o* ;bi ooy.rest on a sleigh as the sleigh is pulled up a hill with an increomoyd;ogfi0j 8* 6b55p. hjiiasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?