99.36: What happens to the inertia of an object when ezn k8a lp;:u .a3xd*xh( f1zjits velocity is doubled?

  02.14: An intrinsic propertqn epfb;6ex0grv f j,:v e0r5,y of matter is one that does not depend on the quantity of matter present. Which of the followi0ep vn b0 :gv,,56;frqejxfe rng properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rln3q-s8 0tconxy: 4l cests on the surface of the Earth. Assume the Earth has mass3-nt xc n84 yqc:olls0 $5.98 \times 10^{24} \; kg$ 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. What is thgm-*p uipclp a 5px*cu+(m 3jids.+ +pe magnitude of -m(ac++u *sl3mj px5.gpi* cudpip +pthe 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 ob9)ld* jcgyja*8 xbt6 wject’s velocity to increase while its acceleration decre gycx9*d6b 8 *ltajwj)ases?

  00.11: A certain particle undergoes erratic motion. At erg3 :nm .bnw3gvery point in its motion, the gr w.3nb: 3gnmdirection of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at th:s8rl: aii: s.sothqp o 0a90le end 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 identifies the Newi:r: la :si. 8 otolhq9sa0s0pton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the for179+. hyfegp muw n3zllowing situations is the net force constantly zero on the eun3gy9rfpwh z +.7m1object?

  13.28: An object is in free fall close to the grv5xm9gcu +why7i- 5 icound. A person intervenes and slows the object 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 gragci vchyiw+ ux9m7-55vity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 -dka/;zb 8z.mqh cba3N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of a3.-b zz;kaqhc/m8bdthe resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons canxbmq (yfx ;p. sdc5bxz: fis90o4k57t be combine to form a resultant with a magnitude of whik fm 5y(oz;5xpbi47q.90fd c:b ssxxtch of the following

  10.06: Which of the following/-w lid76j *s si5d lj9kwf+bu-c3x vr statements is most closely associated with Newton’ + rv lxicikd6sb*s-3djj-9f57 u/wwl s Third Law of Motion?

  95.06: The reaction cup l7v965k2f pti4f jforce does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is agj;8frgkxia0pbo 28 5 ccelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?o;xargjp8f 0bk8i g25

  15.15: A skydiver falls downward through the aiul7p.x.-lkp+xr:yb wn u,7amr with constant speed. Which one of the fol, y.pla wrx:u.mnlb-7p+7ukx lowing choices correctly 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 by a pitcher with a speed of 35 m/s. ze-fx2h, w h7k The batterswings and hits the ball. The maxf7 ehk2hw, z-gnitude 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 6k6k0ethnp1 g the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exer6n10thk kepg6ts on the book?

  05.06: The students in a Physics I class were in lab conducting an 2oy9j poi; ta5c4nx9z c r,(nyexperiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From2;cnixa9y o9zny4 r(o,tpj5c this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled whirln(-fwd xhm b/mqi - ye;lc,d7h *.*ile at the same time the mass of the object was halved,then the acceleration of the x;idqeb (nwi,d.c/my*m 7lrfh -- l*h object is

  96.15: A car whose mass is 1500 kg is acceleratem8fdmv.,m-elpl -+xj :hrkb 4 d uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the neb8:.fdmh-4epx r-m ,+vkml jlt force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The masw+y)x af+q 8wop0 bz-ms of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailo+b0 xm-qfwyz8+a p) wer applies on the tractor is

  99.16: Which of the follo-+ty j terfo00wing principles best explains why large tractor-trailer trucks generally accelerate much more slowlr t0o0f +te-jyy that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless t6(grq- q tr/qhh3t4yrink throws a 2 kilogram ball, giving the ball a velociry -ttqt/hqhr 36(g q4ty of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the hjk*m)vq 6kzl d:a ;s9earth with a weight of 100 newtons is acceleratev:m*a6kj dh;q sz)9kld 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 fo8 t pbrb:(o0uhrce of 2400 N. What is the speed of the car 8.0 s af(bp ro8h:0tubter beginning?

  98.32: A 3.0-kg block wicmqck5m(84sr*s 5z, dvn a cc/ tu;kv4th initial 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;8tam*v kmuzcnqr4c s(d/ 4c5v,s5c k 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 a6k7 i i2krl8j.l qb2ypcross a rough horizonta27i6ilyj2l . rqkk 8bpl floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal(o;5vv* f lrgtro b x)5-ygtw65grl9 x surface while a person pushes directly to the right on the box with a force of 60N. rf*wog5)-vt5l9xt bl5 rg; x(ygvro6The 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 m31o/ x.dgepe qpbfa)4oving at 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 best represents the coefficient of kinetic friction bet o/b q41f xdega).ep3pween the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a speed v with i wyntu435s.;* gj mjvats brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and .va5 *tsmj3ng4ju ;ywthe 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 vy. ((k6me**ommxk ita speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinet* ik*kx(mo .y6etmmv(ic 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 makes an emergency stop by slamming on8ou-l tgowj z-6p(r)u hak*:i the car's brakes and skidding to a stop. How far would the car have skidded if it had been travelin8ua)-zkju-w(po6 :*olhri t gg twice as fast?

  99.39: The driver of an autovctqb v6 z8h -t0q4j3smobile must carefully control each of the following devices. Which of these devitt6cj08 vhbs4 zqqv3- ces 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 2)4hh3pd2 wuq k4000 newtons. About how much time is needed to increase 3w ukdhp)24 hqthe rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horiyr./ m;xz 4gerzontal floor. A person called Ted exerts a force T to the right on tr;/4r mze.x gyhe 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 shoz;tz50g m* fgnws three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over thet 0f;5ngzzg *m 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 shows74be v6;.; vbd tewvva three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the trackb;7vevb.4 eavv6 w ;tds 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 fri dpjm5 e.3 ,5d/qchrdnctionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleratn.hrd pj ddm,3ce55/q ion at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a rope wqq)3xe uw udn m7vape2*v f+;9ti l:j7hich 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 x;fqu9* ilp tvq7w 2:med+ 3e jv7n)uathe 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 isn8as10;rrcn wv4xt)t 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 )tarcn 014trxn 8vw s;after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass ph77( l jhwlpz *fu7,gwith a constant speed by applying a force P. The arrows in the diagram correctly indica h77wgp ufz,7pljl (*hte 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 the1p;ynas3m7nf i- d ni1 following statements conce;n- 7ysnpda1i mif n13rning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as8( 8fhwuhhmg *8cpu :l the sleigh is pulled up a hill wiuhh( 8c88fh*: m wlugpth 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?