99.36: What happens to the inertia of an objrtatdc e(d 7 a2d1 5v6nkgsl9*ect when its velocity is doubled?

  02.14: An intrinsic property .j-3-d7q-vfzziuem u of matter is one that does not depend on the quantity of matter present. Which of the following proper-z-vj 7iu. ufem3-q dzties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on thewuxv /;uajtx; uv-+w4 surface of the Earth. Assume the Earth has mas - uw+u;vtx/;u waj4xvs $5.98 \times 10^{24} \; kg$ 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 frev ) pb7sd8)i1xammf0qz o x:8fe fall near the surface of the Earth. What is the magniimp 7q:8 oxs)zdv8b0x1 )affm tude 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 //urc;(o b2v(ca gbj+ tsze g5)kwy;gincrease while its acceleration decrea(a /);zkgccr/usegjyo g bb25vt;w(+ses?

  00.11: A certain particle undergo:t8k9cfksdld*g vsr.9s 7 z7 ies erratic motion. At every point in its motion, the direction of the particle’s momgsr: c89d. 7svszdk9*fi7tlkentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a pers azgsa0kp(t2u5 lvn 7v r(0fc-on. The person pulls on the string uniformly accelerating the block upward for a sh clu - av(7vasf0 52ztpg0(knrort 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 situati /ykl;bwb(s3 yons is the net force constantly zero on th lskyw/b3b y;(e object?

  13.28: An object is i slx fwg,5gqi+k,b : mi(+g.asn free fall close 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 person? The magnitude of the object’s accelerat+ ki5m.si,l:b , fgxag +wsq(gion is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 e)zwh;zvr6)e- vi.atr9il+jl fx, a +of 30 N, F2 of 50 N, and F3 of 70 N, ac+.lvhz) atvi-r+,wixj a6; lz ee)f9rting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be coxz+h:9 fh hjk2hfj4+u mbine to form a resultant with a ma j+f4jz2h9xk fh+h u:hgnitude of which of the following

  10.06: Which of the followinwcb .xx*n.a :y n3g ;t3h*a: zomsm9gag statements is most closely associated with Newton’s Third L*g:xgnhzbn93 .:oyx;a at mc .w*sa 3maw of Motion?

  95.06: The reaction force does not cancel the action force d 43jwnt,e h(hef:+oiqex j 0gd8u1d.because:

  14.14: A box rests on the floor of an elevator. The elevator is acceleratin*jqj,bb lx of503sz-c g upward. Wflszxj0co5b3 bq*-,jhich 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?

  15.15: A skydiver falls downward through the air with constant m 6bg3z2q .unxa zc); xpoksf2vl89u*speed. Which one of6fuu; 29 )ba3x *lc.gsp8v zmzxq2nko the following 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 +.mu+6lyu;; xgnxsmi m/s. The batterswings and hits the ball. The magnitude of +uml.sx6ugy ;m+nxi ; the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On to 378s vb(, xlmjp4y5 y5lnflmfp of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Thirdm lp,jm 5 lf 7y4fv5x8bn3ls(y Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lcpxuni.,v-( y5i.)go *k w))jmsew va ab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From thisejy.*oi gxc5v.n w,)u )s(vmk-) apiw graph, what conclusions can the students make?

  99.03: If the net force on an object were doub qljm3i+eb4kts87a 4tled while at the same time the mass of the object was halved,then the acceleratielt4 +84t3asbik7m jqon of the object is

  96.15: A car whose mass is 1500 kg is accel;xi3b4lbek2 gmx : o1nerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net f 1ie4k;b:lo2x x3ngbmorce accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The massr kdhj fff1, k0,6k-lf of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer appjk- ,0fflkh kr, ffd16lies on the tractor is

  99.16: Which of the follohvv:/(i/2m*bwqz m mkwing principles best explains why large tractor-trailer trucks ge*(v2mvkb//hzmwmq i: nerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogr) 7qj xixpm,r-7 fr7hqam ball, giving the ball a velocity of 10.0 m/s. Which statement describes the su 7r hf7x-j7i,rq pxmq)bsequent motion?

  00.13: An object near the surface fhxrz *oj2n; +7yb3bz of the earth with a weight of 100 newtons is accelerated az2j 7nb+* zb;3f xhoyrt $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is ac x a45h0hvlqsplx1iurk:n954celerated from rest by a constant force of 2400 N. What is the speed of the carlq0x9i n1:kp rvlas5huh4x45 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough htbh:zupkxp. 2k*n6-w6+lad+x j7w g o orizontal floor before coming to rest. The frictkj*u72bnhd6 pwl:.6poa -xgx +zw+k tional 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 acr7oufx/ p(mq /j0h9avfoss a rough horizontal floor before coming to rest. The coefficient of fric0pahf9/o m jf7qu(vx/tion is:

  09.21: A 20.0 kg box remains at rest on a s,qxljtx3hc2fn v;6ud5)g9,zl nlc-)h w em+horizontal surface while a person pushes directly to the right on 6uhxeq jc tsvn )+) g l2dwxn-39z;clf,m,l5hthe box with a force of 60N. The 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 restg, eklh/k vrybenf6d um97 +vdm9o4+ l1(efh8 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 he m1 8f6k9 uv( 9 ybofhlemvngd4l +ed/7r,k+the block?

  00.21: A car of mass m slides across a patchwk1xc;ie 5 bbbu*oxm*h 1z:x ) of ice at a speed v with its brakes locked. It then hits dry pavement and skix *h1;iubcz x1b:wo)5*xe mkbds 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 jxi bf0*rf+e7 ny.u5hacross a patch of ice at a speed v with its brakes locked. It then hits dry pavement a.x0bfh r+ey if*7jn u5nd 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 abwrm: ., j4blcn emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had 4jbc bmwl r:.,been traveling twice as fast?

  99.39: The driver of an automobile must carefully control t0;avhu fy. 4meach of the following devices. Which of these devicest04 a;m fhuv.y 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 newmfhaj)ejm 2nm19 *+ kftons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near t9m)h jf m+ajkne*12mfhe surface of the Earth at takeoff?

  07.21: A box slides to the right acrs4gecxa 0g xt5o3:-dooss a horizontal floor. A person called Ted exerts a force T to the:5 gda3 x-tx4o0e cogs 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 rz:-4ckmez wbhwy /c zg;;xz5(oller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves friwhzwz(e5-bz :;x/cgky c4;z mctionlessly 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. Asv 7,br;.-xo0zn-v j z/kxiyx csume that on all tracks the roller coaster carts start from rest at the same elevation and movenoy-zc7br0.,-; jixx/zkv v xs 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 frictionlet6kw te2 -2b9cdd:. fa:e)fbwf;iy n rssly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart e fwfe6:d)9-wic a;2y 2t.btdnkfr: b's acceleration at point

  02.40: A box with a mass of 50 kg is drap/( j; onmfj(9uz c9fdgged 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 259(;mcp /jzufo(jfd9 n0 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 pucomn,. 8s)ex n6ysy 0ushed against a wall by a 100 N force as shown. Thecoefficient of em6c8uo y xs ,)y.0nsnkinetic 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 across a horizontal par.oxh/o zk+0:d p qjtge; st,8tch of 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 various forces on thh;, +/kxpj.osqtzt: o e r8dg0e 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/j8ddwov/2 fht:j w m9 on a table. Neither is moving. Which of the following statements concer2tjh/9mw/d:owd8j vf ning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh yw oqyw9miw: .0j vh0+as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for thv:w w ioyh0+wjq0m.y 9e crate’s increase in speedup the hill?