99.36: What happens to the inertia of an object when its velocity i2/pmt y (9y4p-d q(3 bucbkliys doubled?

  02.14: An intrinsic property of matter is one that i s+bx2du 5k.sdoes not depend on the quantity of matter present. Whic+s 2u.s kx5dibh of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface 55jjr*f/s afd of the Earth. Assume the Earth has mad/s f fa*5rjj5ss $5.98 \times 10^{24} \; kg$ 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 the59kazkp pn9+h8xf iy9 Earth. What is the magnituda 9ix58p9fphy k zn9k+e of the gravitational force acting 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 0wqp8vb v2o (kacceleration 8vw vkq p(b2o0decreases?

  00.11: A certain particle undergoes erratic motion. At every p:k9wi ae eua *k2g45r/gn*k lroint in its motion, the dire* 5nr2a k/i gu* eerlk9gwka:4ction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a person. zz.u+o 82xs sdThe person pulls on the string uniformly accelerating the block upward for a short time. During thios2xd z.+su8zs 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 thenv(o qg*u5yy 2;8 aaur net force constantly zero onr u a;u(q oygny528a*v the object?

  13.28: An object is in free fall close to the ground. A person int,+kyn 7oh /wdf/d lu +cyc/j+tg5 auz/ervenes and slows the object uniformly to rest. Which one of the foll/u/ a wf7o+zj5h,tnk c/yd/ u l+yg+dcowing 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, Fr+3fq tnm5g9k2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the res+ tkr59 ng3fmqultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force o3327 zv dfm u5ifbtn.rlw -6iyf 10 newtons can be combine to form a resultant with a magnitude of whic2 d3-mftw73iyuf bzl5ir.nv6 h of the following

  10.06: Which of the following statements is most closely associatq;4 s8p:u dgdu7w 51w lm4pkpded with Newton’s Thimwkw;p d4lp1qd 5gp7d8uu s: 4rd Law of Motion?

  95.06: The reaction force does not cancel the az21b xhy23o*l0tgn r rction force because:

  14.14: A box rests on the floor of an elevator. The elee a w,-ez:rwzlw2l; i9dt r13, meuw8qvator is accelerating upward. Which one of the following choices best represents the Newtoz,- edmwtaee lrr9q2:zw, 1u;i38wwln’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls /w3qh; z r+tbldownward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair forchwtrqz/3 +;bl e to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed ;e1ly8qk jlxn-o ow92of 35 m/s. The batterswings and kxqoy2 e-9 nlwo;1lj8hits the ball. 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 top of the book is a calcul-i:/ky i13fvyp l4o daator, also at rest. Which one of the following choices is the Newton’s Third Law pair force toy :lyio- /kpa4 13idfv the force that the table exerts on the book?

  05.06: The students in a Physics I clafq 4zi4,w- gatss 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 thgtaiwzq-4,4 fe students make?

  99.03: If the net force on an object were vnr:rfg5t , i/doubled while at the same time the massn, : ifr5/gtrv of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is ac,qdtre- 2q v,ecelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net fodv 2-tqeq, ,errce accelerating the car is:

  99.05: A tractor-trailer truck is trr8ma /3bqhotj3 d2e9faveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the traile9dh3oqjfr/ 8eb 23m atr applies on the tractor is

  99.16: Which of the fk 3a :wg.w3ua8adf0ua ollowing principles best explains why large tractor-trailer trucks generally accelerate muc3.uaw 0 a:g ua83wdakfh more slowly that automobiles?

  99.19: A 50 kilogram skm8x(y6l)vi/+df - z(+ i w2rvo qwyjwsater at rest on a frictionless rink throws a 2 kilogram ball, giving the ballwi+m/ d( )w(zwxqf 8-srjl2iy vvoy+6 a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earfv*q:zh ,eit0 nom(dt )r1 9h)p4g muath with a weight of 100 newtons is accelerated:*t o aehfz1nu)h0gmq d)m9( ,vrtpi 4 at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kzuji8 3pd /ca(wft:j (g is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after beginningj c:uzp 38dawjfti(( /?

  98.32: A 3.0-kg block with initial speed 4.0 m/s h7g-nndbt 11 zslides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How f1h17-tgdz bnnar does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m acr * agx:9c:jaquoss a rough horizontal floor before c9q:: ca*gaju xoming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while zs21 p8iw3akf qnfo+ l;/wib8a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the sqfp/il8231na okfiw b+;8ws z urface 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,z y 1s2wd ;iuu5dlom/ 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 best represents the coefficient of kinetic friction between the surface and the block /y52ds,uzmw ; 1luodi?

  00.21: A car of mass m slides across a patch of ice at a speed v with its braken,il q vf)zt8(s locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of ki i)qvt,l(nzf 8netic 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)f nytaof tc8t s8*71hf7lq:h patch of ice at a speed v with its brakes locked. It then hits dry7at)hf*lq8 1n:7yhf osfc t8 t 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 speed of 2v, it would have skidded a distance of

  04.32: he driver of a car ma 0u3yfxo+wuyxxhpz. a/6mhifc9 8 0c 4kes 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 as fast? 6 zo 4a9umx0fx.ywpcy+h3hx uc8/f0i

  99.39: The driver of an automobile must carefully control each of the fol 3n,iny74m(tfx6q06g v;1 okn l tf2slcn.hyclowing devices. Which of these devices can cause an acc6k ;3ti6 1f (n7,x tmo0 cnycnqlghs2f4.yvln eleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocketnc( yjbk u2.lu4 :udf; with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 y:f l4jcdu (nku.b2u ;m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A pyt9jnbsa /f8l (ls//aerson called Ted exerts a force T to the right on the box. A person / ns a(8sy/lf btla9/jcalled 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 sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster 8hy y*3u ht*9eby) g4jfodumym9qn*0tracks of equal length. Assume that on all tracks the roller coaster carts 8 bt*y3hyjfue yyuh)m 90 9gd*q*nm4 ostart 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 rolhnk jw0i31 j*r8cvwm7ler coaster tracks of equal length. Assume that on all tracks the roller coasc0 *vrh j1kin8w 7wjm3ter 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 cartrolls frictionlessly along the curved of.3qonhb s *bt;-;a:jrcur/b id8 b0track from point A to point C under the influence of gravity. What would be tdjf/c3ratb8oqrn.h* 0: ; buio- b;bshe direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floyw /lt9gx54yoq8 omwo g758wior by a rope which makes an angle of 300 with the horizl4yt /x q95mo ow75 8owwygig8ontal. 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?

  04.40: A 6.0 kg block initially at rest is pushed against a wall by a 100 N 0za 7d bu 295zbz0byvoforce as shown. Thecoefficient of kineticb2 vb0z a95zyb zuo07d 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 across4bjetbg0zavn5 :dc:t+cn 9 0a;sis: u a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correc:tvg: ua90zcia5jn;c + 0eb :d tb4snstly 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 moving. Which ojo- awh,5yd4gap4 uw;f the following statemod5;- jw,4auh p yagw4ents concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled up 9b4zh ,tecv/t a hill with an increasing speed. Thetce 4zh9vtb,/ crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?