99.36: What happens to the inertia of an object when its velob7v kx, d 22+xvmzhg)ocity is doubled?

  02.14: An intrinsic property of matter is one that does not06dh5gyjr v 8d depend on the quantity of matter preseddg h0j yv8r65nt. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earthif/fm0i9o6o g. Assume the Earth has massi/f o6o f0igm9 $5.98 \times 10^{24} \; kg$ 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 c,cl5/ u,-ellw f d:icnear the surface of the Earth. What is the magnitude of the gravitational forcwu :lcd lc/,elc,f- i5e 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 whileiec cgglz3;s r5p96,pa.ouz- its acceleration 3l5ui.s9po e,za zgpc -c;g6rdecreases?

  00.11: A certain particle undergoes erratic motion. At every pogek37 5ra lnh,ajl0vmh2 )-qsya i69oint in its motion, the direcg2i- vn hm09sa7hoe)r 3 6aka,jl5ylqtion of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a strinwc n 2dnnnu3j9/sx78vg 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 identw /c7dvxnn n9jn2 u3s8ifies 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 constantl, dphakw:5x/ cxkh-z, zq96qly zero on t:/p c,6qkz,d-9hwa xqzxlk h5he object?

  13.28: An object is in free fal e3extt )yi/e65 c7mh rp)veh7l 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 /tyhe5)67he v7cimp )xtee3rthe 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 eiqytrjrp5.( - quilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magn(ij q ry-ptr5.itude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a forc *a;acys*cz, 3fpez-1 hn0 scle of 10 newtons can be combine to form a resultant with a m f3ca;yszz clh0,p -s*nc1e*aagnitude of which of the following

  10.06: Which of the followilqf h:g 93vtd*: y8azxng statements is most closely associated with Newton’s Third Law of Motionlhat 38dfx:y:g9 zq v*?

  95.06: The reaction fdc80e k3: vgxsph6-ea orce does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevatpy9i6ttba +m+or is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gra9iabymt+ t+ 6pvitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the airp57iu, eo9vmv fzg)ru)mw f 03 with constant speed. Which one of the following choices correctly describes the Ne,vm)ff)zg3 evoupr 0uw 97mi5wton’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. The battersl)w-osjeuzet .w g +:z)o a(2swings ans)zso+ .utewgz:a - we2)o( jld 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 a calcuoi oa di/6;yq r2gi1a(7wtm :alator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exerts on qi a: (rma1yi/2ow6o a7d;gtithe book?

  05.06: The students in 3o(q6i h* b,l01je; qrsa ijeia Physics I class were in lab conducting an experiment related to Newtoeaqj q (i0ole ,h36iib1 rj;s*n's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at theklizu6.g+7qq f. r )e*i k.rol same time the mass of the objectil ig 7euqk.6.*k .rroz+ lqf) was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a sp x)nt7e5/xtoqb9i )gf eed of 20 m/s in 10s. The magnitude o no ge)t97tq)/xib f5xf the net force accelerating the car is:

  99.05: A tractor-trailer truck is sl/ ::1tsrvr dg gdq23traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force t ldr3tq s ::r/1sgv2dghat the trailer applies on the tractor is

  99.16: Which of the following principles best zn t1ef(ni 78eexplains why large tractor-trailer trucks generally accelerate mucnife8 e (7zn1th more slowly that automobiles?

  99.19: A 50 kilogram skate*r)v +jwi,o,h bqu5blr at rest on a frictionless rink throws a 2 kilogram ball, giving thj5,biv+ ),wu orlq *bhe ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the eam ya83)o8gqwf rd+ :zirth with a weight of 100 newtons is accelezgq83)yrf+ :d i mwao8rated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is lt ohas5)5i xuw-hq16 1200 kg is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after beginniqs )axu5hw1oilt 5h-6ng?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizoeuw t10p06 ivwntal floor before coming to rest. The frictional force acting onwtp10vi 6w0e u 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 slide2- gi*zi l1 jxa s9w,wrvcmr:0t )ci;i62xcxls 8.0 m across a rough horizontal floor before coming to rest. The coefficient of frictiwg va xc 6 2lsx9trc0i;zcrixw:l) 1j,ii*2-mon is:

  09.21: A 20.0 kg box remains at rest on a horizontal surfaceu/qg(wnveml)a rygmi 1*3 ;j 4 while a person pushes directly to the right on the boeg/anj m4qm)lir3( gvy w*1 u;x 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 accelerarj/fhvz *wjh(2, y9 rjfo:p v9tes 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 sujr:pf, fj( 99yhr2/h vvjz* owrface and the block?

  00.21: A car of mass mr.4rret 8(svu slides across a patch of ice at a speed v with its brakes locked. It then hits dry pa8.4srrr(tuev vement 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 paod p6f 3zln)3htch of ice at 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 d3) h63f nzplois 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 on the car'sa0x0 rtzw1 ov8 brakes and skidding to a stop. How far would the car have skidded if itvx1zr8 oa tw00 had been traveling twice as fast?

  99.39: The driver of an automobile dmg*jag+ 3 l/vsux2zx -k d)z,must carefully control each of the following devis2 dv/,z*lxzm-xk + g) gad3juces. Which of these 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 1500l8bs/7blnm4 u1g/ dhl0 newtons is 24000 newtons. lh/bll1g s/7umdn 84b About how much time is needed to increase 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 th 5b8d q9bfix.qe 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 M to the leftdq 9i. b85fqbx, 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 h.+;i fkzxj.q 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 finishjkf +qih.;xz..
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 g yj. 9m:axso y67e3dm7l- byuthree 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 finish. jma7o l 3y se-myd769y:g. uxb
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 cartro cm x1xzln2hge1c90 z8n)iy+d lls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the directizl nn+1dg cex1mizy0h)9c28 xon of the cart's acceleration at point

  02.40: A box with a mao*l 6*cwquo+ qss of 50 kg is dragged across the floor by a rope which makes an angle of quo+oclq*w 6* 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 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 ae7prho y1j )h li1oz0:+e -xic 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true ohci1: eo y lo)e-xip1+0zr7hjf the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass wiu0 qb8 mm4v7wkth a constant speed by applying a force P. The arrows in the diagram correctly 0mbw7u8kv4qmindicate 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 ofj 4*eu j*qlec 2j))w czr/dwa+ the following statements conceud+/j2lwr*jza4)* jcwceq ) erning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pull0esc k/j *bfeskgy62-rfj 09r ed up a hill with an increasing speed. The crate is not fastenj0e/kf- g06es r2sjk c*yb9r fed down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?