Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 39P
A mass m, undergoes circular motion of radius R on a horizontal frictionless table, connected by a massless string through a hole in the table to a second mass m2 (Fig. 5.33). If m2 is stationary, find expressions for (a) the string tension and (b) the period the circular motion.
FIGURE 5.33 Problem 39
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PROBLEM 13
15. A hanging mass, M1 = 0.5 kg, is attached by a light string that runs over a frictionless pulley to a
mass M2 = 1.5 kg that is initially at rest on a frictionless ramp. The ramp is at an angle of û = 30.0°
above the horizontal and the pulley is at the top of the ramp. Find the magnitude and direction of
the acceleration of M1.
a. 4.905 m/s², upward
b. 4.805 m/s², downward
c. 4.905 m/s², upward
d. 4.805 m/s², downward
PROBLEM 5.13
15. A hanging mass, M₁ = 0.5 kg, is attached by a light string that runs over a
frictionless pulley to a mass M₂ = 1.5 kg that is initially at rest on a frictionless
ramp. The ramp is at an angle of 0 = 30.0° above the horizontal and the pulley is
at the top of the ramp. Find the magnitude and direction of the acceleration of
M₁.
A block and sphere are connected by a cord that passes over a pulley as shown. Neglect friction and assume the cord is massless. Take m₁
Ө = 49.0°.
m₁
m2
0
(b) What is the tension (in N) in the cord? (Enter the magnitude.)
24.52
N
(c) What is the speed (in m/s) of each object 1.50 s after being released from rest?
3.675
m/s
=
2.00 kg, m2
= 4.95 kg, and
S
(d) What If? If the incline under m₂ is rough, what is the minimum value of the coefficient of static friction μ for which the system will not move?
μs =
Chapter 5 Solutions
Essential University Physics (3rd Edition)
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