EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Textbook Question
Chapter 4, Problem 76GP
A block (mass mA) lying on a fixed frictionless inclined plane is connected to a mass mB by a cord passing over a pulley, as shown in Fig. 4–54. (a) Determine a formula for the acceleration of the system in terms of mA, mB, θ, and g. (b) What conditions apply to masses mA and mB for the acceleration to be in one direction (say, mA down the plane), or in the opposite direction? Ignore the mass of the cord and pulley.
FIGURE 4-54 Problem 67 and 68.
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Students have asked these similar questions
Two blocks made of different materials, connected by a thin
cord, slide down a plane ramp inclined at an angle 0 to the
horizontal, Fig. 4–76 (block B is above block A). The masses
of the blocks are ma and mB, and the coefficients of fric-
tion are ua and µr. If ma = mß = 5.0 kg, and
HA = 0.20 and uR = 0.30, determine
(a) the acceleration of the blocks and
(b) the tension in the cord, for an
angle 0 = 32°.
MB
FIGURE 4–76
Problem 94.
A 28.0-kg block is connected to an empty 2.00-kg bucket
by a cord running over a frictionless pulley (Fig. 4–73).
The coefficient of static friction between the table and
the block is 0.45 and the coefficient of kinetic friction
between the table and the block is 0.32. Sand is gradually
added to the bucket until the system just begins to move.
(a) Calculate the mass of sand added to the bucket.
(b) Calculate the acceleration of the system. Ignore mass
of cord.
28.0 kg
FIGURE 4–73
Problem 90.
A box weighing 77.0 N rests ona table. A rope tied to the box runsvertically upward over a pulley anda weight is hung from the otherend (Fig. 4–45). Determine theforce that the table exerts on the box if the weight hanging on the other side of the pulleyweighs
(a) 30.0 N
(b) 60.0 N
(c) 90.0 N.
Chapter 4 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
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