99.36: What happens to the inertia of an object when its velocity issqc4nz1so oo d./)d5h doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quante.5-,x6 h0 abz cs4bogb:ntl(zphji 9ity of matter present. Which of the following properties is NOT an i:z.bbb0jo-p z9tnsahhc5 (l6ig ,e 4x ntrinsic property?

  04.16: A 20 kg bouldg z)11zxjwmv;er rests on the surface of the Earth. Assume the Earth has mass vmgz w)z11x j; $5.98 \times 10^{24} \; kg$ 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 Eart3k3iqh+f wzr. h. What is the magnitude of the gravitational force acting on the eiqz k3fh 3.wr+arth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible fwy/ .1juw u-kw nl7uf4or an object’s velocity to increase while its acceleration decreases?l147 fkwwwju /u- .yun

  00.11: A certain particle undergoes erratic motion. At every point in its m, 5 i2k 7gzenrgq.zc0iotion, the direction of 7q kiz, 0rc5gi.z ge2nthe particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the ,cx7 +k:b3tnni4x 06t vkj9jbr,q rbcend 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 identifiesx jri b9:n7k ,r3,x bv4t cjqbc6t0+kn 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 force constantly zerphx. 0+hljue e .(0jrgo onlhrej h.0p+0u. g(je x the object?

  13.28: An object is in free fall clow( *6iwzb cfcu0 ep5x7se to the ground. A person intervenes and slows the ob(w piu5ebzcc0w *76xf ject uniformly to rest. Which one of the 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, F2fig ypx9z,lzhr(: s:4 of 50 N, and F3 of 70 N, acting on it. T9sf,gr y:xl 4:pzh( izhe magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and 4-xr+e* viehr a force of 10 newtons can be combine to form a resultanhrerv 4+i-*ex t with a magnitude of which of the following

  10.06: Which of the following statements is most closelyy9 78gg k)ruec associated with Newton’s Third c8u9g) 7rygkeLaw of Motion?

  95.06: The reaction force nw )0ge8oig0mdoes not cancel the action force because:

  14.14: A box rests onm98/irft bu +l the floor of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law paiur/bim 89ft+ lr force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls dowo .6 47u(hqgmy4f de.aktaug rg0qv(;nward 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 skydig k dgu7.(f4v;ye.u(h 6qagoa4t0r mqver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. Tht t)x n;)mo6wue batterswings annu mt w)o;tx)6d hits 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 ar/ tacc n2de* hr2g9b* calculator, also at rest. Which one of the following choices is th*ba/ h2c *9nr2tdrecge 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 conducting 0tlw-s;1pdzmt l(9cnan experiment related to Newton's Second Law. The collected data were displayed on the graph atnllt1c(0 d -;ws9zmpt 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 bw,z*/r blxf)a3:wf gzw7 3wj same time the mass of th,f/zzl3b:w r w3fx) 7*abwgjw e object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly fromz-plm+fb11al3)da in rest to a speed of 20 m/s in 10s.i)1bzl+1mpl a3df- an The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truc lxf*xhg.eg1 9k is traveling down the road. The mass of the trailer is 4 times the mass of the tracto1h egg* xfl9.xr. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principleca(2br w7 s5wms best explains why large tractor-trailer trucks generally acceles wwra7(5bm2crate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilar n-. ki2craq 6ex50togram ball, giving the ball a velocity of 1- 5ar 0aeqn6.rx2ckti0.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the suaz1u lmg3n6e0rface of the earth with a weight of 100 newtons is accelemz1lg 30eau6nrated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1208b woavbibu2t2)kha ok5z p 01)vw(l 00 kg is accelerated from rest by a constant force of 2400 N. What is the speed vb5z)21pao (btu) 2lv0o a b0kkw h8iwof the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 /g1iq:gwn.81dmbztmnio 4 0e 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 restwt qgg/m.eob i:m4i0 1 n8dzn1?

  95.38: A block with initial velocity 4.0 m/s s3cv6 q6pxn+qy6h;tvua:*e zslides 8.0 m across a rough horizontal floor before c;es x3chvzqp6qayv u6*+ : n6toming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person push(0 -jjqu6quzi es directly to the right on the box with a force of 60N. qu 0(j-i jqz6uThe 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 8 m/s accelerates uniformly to rest on a hori5kltwp1-ydjo ih ,7 a6zontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best represents the coefficient of kinetk1paoidw7,y h-6tjl5 ic 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 ig+306.j ud sxne4 ptbmts brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the4 j .06uxpedbg+ nsm3t 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 ayi;a yr5i(*rv .rh 6qft 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 road i.6f; ih(v yaqyr r*5ris μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of awm 3j:q.v lumll7-f2uh4 v5of car 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 74mjvq2 .huf lo5mvl l3fw-u:traveling twice as fast?

  99.39: The driver of an automobile must carefully control easoik+g 1:82 dfr 2wellch of the following devices. Which of thes2+o1e gifd r 2llw8k:se 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 rocket with a weight of 15000 newtons is ajf- - sck65gr24000 newtons. About how much time is needed to increase the rocket ’ speed from 12-6c5-r jafkgs m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horgaj0bl+ yn01 hy50 heoizontal floor. A person called Ted exerts a force T to thehay0l1y0n+ b5oh e0gj 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 sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal length. Asqv*)s *nue)bbaot bbv- s r 5gv(7ql.6sum g bo*5sn)-.leq qvut(bv)vb7s*rab6 e that on all tracks 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 equal length. Assh e.nyh/xq4:pume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionleypex:. 4hhq /nssly 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 roller. zgwy1a -rtns1+yc-xcoaster cartrolls frictionlessly along the curved track from point A to point C under the influence1 yaxtzc-grw1n y -+s. 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*heq/ r wgl/to8/esk 5 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 reqot/l w/ekq gh8sr*5e /uired 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 rc;afzp*9 yp hde,n /he*aa4i6est is pushed 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 af,/fih9;anepp yeza4 *c d*6 ahter a time of 1 second?

  05.10: A homeowner pu 9lbfrqk1:g3 fshes a lawn mower across a horizontal patch of grass with a constant speed by applying a f f9rk: gq1flb3orce 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 moving. Which of the oz /04f ibza(gfollowing statements concerning thiz/b0(z 4fg ioas situation is CORRECT?

  06.15: A crate of toys remains at rest)mhlm 9 zu tz//qqsu5ae ;dtj) jd75(uy5dl; t on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastenqj 7zze/;mduy)mtj(du;t htlsd95 u5l/ q5 a)ed down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?