99.36: What happens to the inertia of an object when its velocity iq,+ x(nbes(rhs doubled?

  02.14: An intrinsic property of matter is one thasaf0w ;7zfy abn6tk 60t does not depend on the quantity of matter present. Which of the following propertawbs 6ff70nzy 60a;tkies is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of thent *bp.5 .apvr+rq0q b,gu fc: Earth. Assume the Earth has m .c:v.+ qqguprb atf,0p5nr b*ass $5.98 \times 10^{24} \; kg$ 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 sb1tf2+mkm r vp1)yf- hxp 9b5near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Eb11bf-r2hp5m+y vx mt p9ksf)arth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its accel.kq (dh 2/l:d4hhmn,fkm+dod eration decrdd, qk+.om/hln hh(2 ddmfk:4eases?

  00.11: A certain particle undergoes erratic motio2r 9.kk+s5wx 5 dyz2fb omj8vh14slzqn. At every point in its motion, the direction1xl9sjf5.4hyzmbv 2zd8 2k5 ks+owr q of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air mej21a,a wb,o at the end of a string held by a person. The ,aaowb2 e1j,mperson 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 string on the block?

  07.18: In which one of the following situations is the net forc :s1c5mbrw*jc ey)7u me constantly zero on th5mm je rcw*7 sub1:yc)e object?

  13.28: An object is in free fall close to the ground. A persoi z h x+qh)+8oy-b/fcsn intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the accelera+ibs)hqy8 +zh x/f oc-tion 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 N, and F3v:a0// qebx4ch4e: 8 kfldoatun// qv of 70 N, acting on it. The magnitude of the resultant oah4dqte// / vf8 b :eonlqc:xa4k /0uvfF1 and F2 is

  01.07: A force of 6 Newtons and n4plo*pu u5) 6os3kc xby0xu7u; v5 ira force of 10 newtons can be combine to form a resultant wit5x0rv upbl)3;4usco57uuki o yx6*n ph a magnitude of which of the following

  10.06: Which of the following statementfuz a84hz/ 2yj(1s0nf oyszp4s is most closely associated with Newton’s Thirdu4zs/nyy szoj 0z14 8a p(ffh2 Law of Motion?

  95.06: The reaction force does not cancel the actioak7n56 t+cqxx ;x )kzbcu7u+b n force because:

  14.14: A box rests on the floor /fxb2k ha o5i ww.,.g0frir8 dy sy8j-of an elevator. 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 box byi y./ 8 fsg5j -y.a8ifw hbdwoxrr,0k2 the Earth?

  15.15: A skydiver falls downward through the air witk mu8btz+0 6fph constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistanzb8 0kuf p+tm6ce acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 d ucv;4 h*kw n+lmzl2(m/s. The batterswings and hits the ball. The magnitude of the cn(ul*w;zlhkv +md42 force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a tablpamoqedr 2r; au t:;*)e. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force p qo:u ;edm) *aatr;2rto the force that the table exerts on the book?

  05.06: The students in a Physics I clas4a37c b,lif:9fo upxxeg2z0ns were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can t7439guxz of0 :cn,balx2pief he students make?

  99.03: If the net force on an object were doubled while at the same time thj8b3oq, 1ig,/3p1q zv mr*txbbnr rj7e mass of the object was halved,then the acceleration of the ob/rrtp zx,jn8b1 1i* mqgv b37qboj,r3ject is

  96.15: A car whose mass is 1500 kg is accelerated u8gx-kh 2 oqwgsyr/f/u0o be*6niformly from rest to a speed of 20 m/s in 10s. The magnituuer/ 2h-gfbgko 0xq8*/ yosw6de of the net force accelerating the car is:

  99.05: A tractor-trailer truck is trr n :og6x,l(dh)(t ;bkwdlql1n4p8b/xlw6 n f aveling down the road. The mass of the trailer is 4 times the l nl nh lxf4(ogr)6q(b:8kdlxn,w6 d1/tpw ;b mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles be -nxht( gjxw94st explains why large tractor-trailer trucks generally accelerate much more slowly that gh9w(tnj x x-4automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless 6fa pwhi:w22 yf9uzo8rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which sta2 o9wy6hf2a w pfu8:iztement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of uvdn.ie- fp zk6 n4g-)100 newtons is accelerdzu 4k6en gp-n-vf) i.ated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass ic+mp.z l edxu/r-7w6 xs 1200 kg is accelerated from rest by a constant force of 2400 N. What is thx6 xepm-wz+l/7 cu.rde speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with i6a9tc+1ebor p 7zp1 ssnitial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming to r9 ct7b 11+or6p pzseasest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rough hori55 h4tkjcb ;2tw50yo9 eebq wwzontal floor before coming to rest. The coefwte9 bc54kyj 0ebwhwot5;q52ficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface 7d dc,2(pdc uywhile a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction bey,d2 u c(d7dpctween 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 ret8/ / i(gipmeb gf2n6gec*s1n(j,i bk st on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best represene8 t(/km,/(j f n62gp*in1iibgcgs ebts the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides03wfqd 7y(vhwsb )i1 ft2lrmphu a)51 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 frictio( 1t pwdwhabuf)mh57) fl13ri20sv qyn 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 icenz plx2(c y)zlhu+8i45 bxt .t 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 tires and the dry ( nz4+h2zul. t pi8yl)5xb ctxroad 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 sle hjnr+rzr vs86h;6+i amming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling tw r8rh+ve6+jnsi6 z hr;ice as fast?

  99.39: The driver of an automobile must carefully control each of the fo picbwtyw3st ,6h d..:llowing devices. Which of these devices can cause an ac,pww 3:.ti6 ytc.h sdbceleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a weight ofw-ib(h,-s2 5;l yim:llirtmb 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 surfh 2l ,ri :l-ib ywm;ltm-ib(s5ace of the Earth at takeoff?

  07.21: A box slides to the right across a horizonta:n3xlr:xeg7s0 jkj 9 ml 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, ra739lrkjx mnesjg: 0: xnk the sizes of these three forces exerted on the box.

  02.27: The diagram below shows np0 q(aa6s04 jjm6 f,mqbsau8three roller coaster tracks of equal length. Assume that on all trackqj n68aj amssq (p4a0fb m0,u6s 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 equalx7 fmodst)f6t-j +ui4 length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the track otxjm-46f ts7f iu+)ds 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 track0wg:k;uji50 ou, zgm5 kql.wa from point A to point C under the .wag5j;woi,lz 5uk 0:ugqk0minfluence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by exxw:wfmvh fnn o))6b5x 4.:hiu*rn1a 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 newvh)5x b)hn mrf.6ixo1euxwnf nw4 :* :ton 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 mrt5u 96oo7demyx1-,o ce:pz against 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 acting on the block after a time of 1 myoox z, mdo1:-r pt75uc9e6esecond?

  05.10: A homeowner pushes a t hs)lpvzomyn5x+: 6.lawn mower across 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 necessa6x)h+smzl5nyto:. pvrily 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 cratrfj 7u-jo7k: r as-4gje on a table. Neither is moving. Which of the following statements concernin-fr7gjju4: 7 -akjors g this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is d/ q/67zscqznxw 1.ye94lumupulled up a hill withlnm71 4u/dxy qqu.c69/s zewz an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?