Physics for Scientists and Engineers with Modern Physics
4th Edition
ISBN: 9780131495081
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
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Textbook Question
Chapter 5, Problem 17P
(II) Two crates, of mass 65 kg and 125 kg, are in contact and at rest on a horizontal surface (Fig. 5–32). A 650-N force is exerted on the 65-kg crate. If the coefficient of kinetic friction is 0.18, calculate (a) the acceleration of the system, and (b) the force that each crate exerts on the other. (c) Repeat with the crates reversed.
FIGURE 5–32 Problem 17.
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(II) Two crates, of mass 65 kg and 125 kg, are in contact and
at rest on a horizontal surface (Fig. 4-57). A 650-N force
is exerted on the 65-kg crate. If the coefficient of kinetic
friction is 0.18, calculate (a) the acceleration of the sys-
tem, and (b) the force that each crate exerts on the other.
(c) Repeat with the crates reversed.
650 N
65 kg 125 kg
FIGURE 4–57
Problem 49.
34. (III) Three blocks on a frictionless horizontal surface are
in contact with each other as shown in Fig. 4–54. A force F
is applied to block A (mass ma). (a) Draw a free-body dia-
gram for each block. Determine (b) the acceleration of the
system (in terms of ma, mB, and mc), (c) the net force on
each block, and (d) the force of contact that each block
exerts on its neighbor. (e) If mĄ = mB = mc = 10.0 kg and
F = 96.0 N, give numerical answers to (b), (c), and (d).
Explain how your answers make sense intuitively.
F
MA
mB
mc
FIGURE 4-54
Problem 34.
38.
39.
FIGURE 4-53
40
Problems 32 and 33.
mB
Mass ma rests on a
smooth horizontal
surface; mg hangs istongi inioq le
vertically.
ni nworda
algne
13.0 kg and mB = 5.0 kg in Fig. 4–53,
33. (II) (a) If mA
determine the acceleration of each block. (b) If initially
is at rest 1.250 m from the edge of the table, how long
does it take to reach the edge of the table if the system is
allowed to move freely? (c) If mB
must ma be if the acceleration of the system is to be kept
at 100 g?
1.0 kg, how large
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Chapter 5 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 5.1 - If s = 0.40 and mg = 20 N, what minimum force F...Ch. 5.1 - Prob. 1BECh. 5.2 - Prob. 1CECh. 5.2 - If the radius is doubled to 1.20m but the period...Ch. 5.3 - A rider on a Ferris wheel moves in a vertical...Ch. 5.4 - The banking angle of a curve for a design speed v...Ch. 5.4 - Can a heavy truck and a small car travel safely at...Ch. 5.4 - When the speed of the race car in Example 516 is...Ch. 5 - A heavy crate rests on the bed of a flatbed truck....Ch. 5 - A block is given a push so that it slides up a...
Ch. 5 - Why is the stopping distance of a truck much...Ch. 5 - Can a coefficient of friction exceed 1.0?Ch. 5 - Cross-country skiers prefer their skis to have a...Ch. 5 - When you must brake your car very quickly, why is...Ch. 5 - When attempting to stop a car quickly on dry...Ch. 5 - You are trying to push your stalled car. Although...Ch. 5 - It is not easy to walk on an icy sidewalk without...Ch. 5 - A car rounds a curve at a steady 50 km/h. If it...Ch. 5 - Will the acceleration of a car be the same when a...Ch. 5 - Describe all the forces acting on a child riding a...Ch. 5 - A child on a sled comes flying over the crest of a...Ch. 5 - Sometimes it is said that water is removed from...Ch. 5 - Technical reports often specify only the rpm for...Ch. 5 - A girl is whirling a ball on a string around her...Ch. 5 - The game of tetherball is played with a ball tied...Ch. 5 - Astronauts who spend long periods in outer space...Ch. 5 - A bucket of water can be whirled in a vertical...Ch. 5 - A car maintains a constant speed v as it traverses...Ch. 5 - Why do bicycle riders lean in when rounding a...Ch. 5 - Why do airplanes bank when they turn? How would...Ch. 5 - For a drag force of the form F = bv, what are the...Ch. 5 - Suppose two forces act on an object, one force...Ch. 5 - (I) If the coefficient of kinetic friction between...Ch. 5 - (I) A force of 35.0 N is required to start a...Ch. 5 - (I) Suppose you are standing on a train...Ch. 5 - (I) The coefficient of static friction between...Ch. 5 - (I) What is the maximum acceleration a car can...Ch. 5 - (II) (a) A box sits at rest on a rough 33 inclined...Ch. 5 - (II) A 25.0-kg box is released on a 27 incline and...Ch. 5 - (II) A car can decelerate at 3.80 m/s2 without...Ch. 5 - (II) A skier moves down a 27 slope at constant...Ch. 5 - (II) A wet bar of soap slides freely down a ramp...Ch. 5 - (II) A box is given a push so that it slides...Ch. 5 - (II) (a) Show that the minimum stopping distance...Ch. 5 - (II) A 1280-kg car pulls a 350-kg trailer. The car...Ch. 5 - (II) Police investigators, examining the scene of...Ch. 5 - (II) Piles of snow on slippery roofs can become...Ch. 5 - (II) A small box is held in place against a rough...Ch. 5 - (II) Two crates, of mass 65 kg and 125 kg, are in...Ch. 5 - (II) The crate shown in Fig. 5-33 lies on a plane...Ch. 5 - (II) A crate is given an initial speed of 3.0 m/s...Ch. 5 - (II) Two blocks made of different materials...Ch. 5 - (II) For two blocks, connected by a cord and...Ch. 5 - (II) A flatbed truck is carrying a heavy crate....Ch. 5 - (II) In Fig 535 the coefficient of static friction...Ch. 5 - (II) Determine a formula for the acceleration of...Ch. 5 - (II) A small block of mass m is given an initial...Ch. 5 - (II) A 75-kg snowboarder has an initial velocity...Ch. 5 - (II) A package of mass m is dropped vertically...Ch. 5 - (II) Two masses mA = 2.0 kg and mB = 5.0 kg are on...Ch. 5 - (II) A child slides down a slide with a 34...Ch. 5 - (II) (a) Suppose the coefficient of kinetic...Ch. 5 - (III) A 3.0-kg block sits on top of a 5.0-kg block...Ch. 5 - (III) A 4.0-kg block is stacked on top of a...Ch. 5 - (III) A small block of mass m rests on the rough...Ch. 5 - (I) What is the maximum speed with which a 1200-kg...Ch. 5 - (I) A child sitting 1.20 m from the center of a...Ch. 5 - (I) A jet plane traveling 1890 km/h (525 m/s)...Ch. 5 - (II) Is it possible to whirl a bucket of water...Ch. 5 - (II) How fast (in rpm) must a centrifuge rotate if...Ch. 5 - (II) Highway curves are marked with a suggested...Ch. 5 - (II) At what minimum speed must a roller coaster...Ch. 5 - (II) A sports car crosses the bottom of a valley...Ch. 5 - (II) How large must the coefficient of static...Ch. 5 - (II) Suppose the space shuttle is in orbit 400 km...Ch. 5 - (II) A bucket of mass 2.00 kg is whirled in a...Ch. 5 - (II) How many revolutions per minute would a...Ch. 5 - (II) Use dimensional analysis (Section 1-7) to...Ch. 5 - (II) A jet pilot takes his aircraft in a vertical...Ch. 5 - (II) A proposed space station consists of a...Ch. 5 - (II) On an ice rink two skaters of equal mass grab...Ch. 5 - (II) Redo Example 511, precisely this time, by not...Ch. 5 - (II) A coin is placed 12.0cm from the axis of a...Ch. 5 - (II) The design of a new road includes a straight...Ch. 5 - (II) A 975-kg sports car (including driver)...Ch. 5 - (II) Two blocks with masses mA and mB, are...Ch. 5 - (II) Tarzan plans to cross a gorge by swinging in...Ch. 5 - (II) A pilot performs an evasive maneuver by...Ch. 5 - (III) The position of a particle moving in the xy...Ch. 5 - (III) If a curve with a radius of 85 m is properly...Ch. 5 - Since the curve is designed for a speed of 85...Ch. 5 - Prob. 60PCh. 5 - (II) In Problem 60 assume the tangential...Ch. 5 - (II) An object moves in a circle of radius 22 m...Ch. 5 - (III) A particle rotates in a circle of radius...Ch. 5 - (III) An object of mass m is constrained to move...Ch. 5 - (I) Use dimensional analysis (Section 17) in...Ch. 5 - (II) The terminal velocity of a 3 105 kg raindrop...Ch. 5 - (II) An object moving vertically has v=v0at t = 0....Ch. 5 - (III) The drag force on large objects such as...Ch. 5 - (III) A bicyclist can cost down a 7.0 hill at a...Ch. 5 - (III) Two drag forces act on a bicycle and rider:...Ch. 5 - (III) Determine a formula for the position and...Ch. 5 - (III) A block of mass m slides along a horizontal...Ch. 5 - (III) Show that the maximum distance the block in...Ch. 5 - (III) You dive straight down into a pool of water....Ch. 5 - (III) A motorboat traveling at a speed of 2.4 m/s...Ch. 5 - A coffee cup on the horizontal dashboard of a car...Ch. 5 - A 2.0-kg silverware drawer does not slide readily....Ch. 5 - A roller coaster reaches the top of the steepest...Ch. 5 - An 18.0-kg box is released on a 37.0 inclinc and...Ch. 5 - A flat puck (mass M) is revolved in a circle on a...Ch. 5 - A motorcyclist is coasting with the engine off at...Ch. 5 - In a Rotor-ride at a carnival, people rotate in a...Ch. 5 - A device for training astronauts and jet fighter...Ch. 5 - A 1250-kg car rounds a curve of radius 72 m banked...Ch. 5 - Determine the tangential and centripetal...Ch. 5 - The 70.0-kg climber in Fig. 550 is supported in...Ch. 5 - A small mass m is set on the surface of a sphere,...Ch. 5 - A 28.0-kg block is connected to an empty 2.00-kg...Ch. 5 - A car is heading down a slippery road at a speed...Ch. 5 - What is the acceleration experienced by the tip of...Ch. 5 - An airplane traveling at 480 km/h needs to reverse...Ch. 5 - A banked curve of radius R in a new highway...Ch. 5 - A small head of mass m is constrained to slide...Ch. 5 - Earth is not quite an inertial frame. We often...Ch. 5 - While fishing, you get bored and start to swing a...Ch. 5 - Consider a train that rounds a curve with a radius...Ch. 5 - A car starts rolling down a 1-in-4 hill (1-in-4...Ch. 5 - The sides of a cone make an angle with the...Ch. 5 - A 72kg water skier is being accelerated by a ski...Ch. 5 - A ball of mass m = 1.0 kg at the end of a thin...Ch. 5 - A car drives at a constant speed around a banked...Ch. 5 - (III) The force of air resistance (drag force) on...Ch. 5 - (III) The coefficient of kinetic friction k...Ch. 5 - (III) Assume a net force F = mg kv2 acts during...
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