99.36: What happens to the inertia of an object when its velocity is+n8 xlx3 dq3is doubled?

  02.14: An intrinsic property of matter is one that .j wkl;-go9id does not depend on the quanti.o il-jw dgk9;ty of matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Eartk4i9p*11yd jdt k p-cqh. Assume the Earth has mass49 1p1d* -yjqit kckpd $5.98 \times 10^{24} \; kg$ 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. What6 cg +r5rsgm x3;k1aia is the magnitude of the gravitational force acting on the earth by the spher;3 rgxci1 +gmka6as 5re? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to incraksmu3cch r+ 6.7pv)bease while its acceleration decreaseshu+7ka.crvbs36 m c) p?

  00.11: A certain particle undergo-k ko2brcu 1v 7:l64yy/lhof yq4 hx(ses erratic motion. At every point in its motion, the direction of the particle’s momentum is ALWAYu/(h: lq4yhryl4k6x s yo kc-b21o7vfS

  17.14: A block is suspended in the air at the end of a strinymw 0 v,,rpcx4g held by a person. The person pulls on the string uniformly accelerating the block upw0wxy,rm ,4 pcvard 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 force constantly ze/2 71kd6+xae/sy wvjsbb/xuuro on the object?2swv7+6y/ jsbu eax1ub/xk/ d

  13.28: An object is in free fall u7e jgdk g-z7kv,zcb;h8z5s 2close to the ground. 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 persk7uzk2z b shg5vejz7-g,c8 ;d on? The magnitude of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrrxs6blwvc ro1 4mm6 w ,c/le0+ xjf5e5): yzrbium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The1xyweso5xec r6 :w,l mlcb5v 6m/0 jr)+zrb4f magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be comt 5y9; sddesd2bine to form a resultant with a magnitude of which of the following9t;d 5es2s ddy

  10.06: Which of the following statements is most closely associateiqa2 jx,v,z2eej:j3r d with Newton’s ,jzqjairvxe :, e22 j3Third Law of Motion?

  95.06: The reaction force does not cancel the action force becausea( x6+y 1r(wp4l4tz9dm okxb mgyh+9v:

  14.14: A box rests on the floor of an elevator. Thrpl*7 5 y ehwippv),4wvm-.jfe elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitatihwej-w 7fv l,vim) *5pyp.r4ponal force acting on the box by the Earth?

  15.15: A skydiver fapg)10,hw rk;yvhv( vnlls downward 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 skydiver durvw1r,hyv hk(p)vn;g0 ing the fall?

  06.08: A baseball is thr6 ,a49gz b6iehbncf9town by a pitcher with a speed of 35 m/s. The batterswings and hf64h 99t 6 ,bnaczegbiits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest wzz0r7/17o v6kmc evoon a table. 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 to the forc1 z07v/zerv6mook wc7e that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an 07a uej ikrl+3r*.mtyexperiment related to Newton's Second Law. The collected data were displayed on the graph at the right. rtie3r7 a*0my +u.jkl From this graph, what conclusions can the students make?

  99.03: If the net force on an object w ,ikq7yhtw+ piw-1xb:q-q e1t ere doubled while at the same time the mass of the object was halved,then the accelhx-wbp :t ywqk,qi1e7qi+1 -teration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly3afbf10 um u-c from rest to a speed of 20 m/s in 10s. The magnitude of the net force ac- fc31ufumb a0celerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass o2 lfrspvh-/n-f the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trv-rp-/fnh 2lsailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-3v h/dab4mf zrzsc* 1ykt ..qbpl8s40trailer trucks generally accelerate bkzfzdayvms4. s.p 83br/4q* 0t1lch much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a fvt8sx-9wu er0 rictionless rink throws a 2 kilogram ball, giving the ball ax8-9euwvtr 0 s velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of to1fl46x7mp2 gseizn -he earth with a weight of 100 newtons is accelerated atoigx 2ez7 sf4l1p -6nm $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a c7h 9k)( ;o x ogmrkqeabpf96l:onstant force of 2400 N. What is the spe7x qg)ob k6 m:k9p reah(l;of9ed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial sp9aw- l8xsr7o deed 4.0 m/s slides across a rough horizonta7 aso8rxwl 9d-l 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 rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rough rgd pnw/az1v8f+d:m )horizontal floor before coming to rest. The coeff1 wavdg m:8) rp/z+fndicient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person pv2e:w :*j.m)l imq s/x 5zqqsrt 67pzpushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction 2)qrix7q6sm ql/ s z*:pvep.j:tmz5 wbetween 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 unn2 yq.86cvxd2b /h0t 9eecum9twn )euiformly 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 represents2 2cu u/0eqx9 )m we9dc8b ynnvth6.te 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 speed n4t d7:l v.5nkanxeh(v with its brakes locked. It then hits dh na:l4e(dvk .n xn7t5ry 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 ftpnnso , k w x2 .,:cicdcq62z-ut9:ypatch of ice at a speed v with its brakes locked. It then hits dry pavement anqp,dxnn2u-w,2 yc 9o:tiftcz .:6 kcsd 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 makes an emergency stop by s2d5gp.6.r) esxfm0elc y 1ujg4e pxz /lamming on the car's brakes and skidding to.2 1csl54egf jr m.x6/e0epzu )yxdgp a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile musc vx2grsg, .0 c8opb2ct carefully control each of the following devices. Which of the0bc.c8 ,2g2gprv c osxse 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 e-;nx. nq*djd3 cwz ga/i *(emc7jk a weight of 15000 newtons is 24000 newtons. About how much time is needed to id. ( :c- ajxdk7*we;gjqac3n zin*me/ncrease the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to /3 ter5 rmgqlbf7 9tjt.t;vm/the right across a horizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a force ;tl //e.mr 95vtmt7tfrgj 3bqM 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 be6. xt6zm(eku elow shows 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 tracks to the finem.z t66xkue(ish.
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 equal5( mxt4jyx 0rk+3tzwd length. Assume that on all tracks the roller coaster carts start fr0y5k4zmr+tx (j w3 xdtom 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 cart6vl*-oy4f swg rolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the g- v oylf*4sw6direction of the cart's acceleration at point

  02.40: A box with a mah.h dz o p2dn ttx3rf-+k;*pn7ss of 50 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 thnhk2p3 ptnd7 +t rdxzf oh;.-*e 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 bys mc ,bzz7:u 9jki)/(e n:rxbj 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 ts,k c/mrue( j7) izb:jn9z:bxhe block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of,am fb 4*uj6mvnf38ner7w)w m 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 var*m67m)wfv a4, nwbne8mu3 jrfious 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 mb4o05 l45co ryy /qnwsoving. Which of the following statements concerning this situation is CORRE54c5lqy/soby 4ow n r0CT?

  06.15: A crate of toys remains at rest on a sleighqe)+u+i5 lvo5ovc,c mgnrcw 2,-6 pg f as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down t6 ,guicf qog -c)oncvr5+ m5ep v2,wl+o the sleigh. What force is responsible for the crate’s increase in speedup the hill?