(a) Explanation Given info: The mass of the pulley is M , the radius of the pulley is R and the mass hanged from the string is m . From the Newton's second law, the value of the net force is, ∑ F = m a Here, m is the hanged mass. a is the acceleration. Write the expression for the net vertical forces. ∑ F = T − m g Here, g is the acceleration due to gravity (b) To determine Whether the tension in the rope is greater than, less than or equal to 0 .

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ISBN: 9780134051802

Author: Walker

Publisher: PEARSON

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Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.

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Chapter 11.5, Problem 5EYU

(a)

To determine

Whether the tension in the rope is greater than, less than or equal to mg .

(b)

To determine

Whether the tension in the rope is greater than, less than or equal to 0 .

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Chapter 11.4, Problem 4EYU

Chapter 11.6, Problem 6EYU

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Chapter 11 Solutions

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Whether the tension in the rope is greater than, less than or equal to m g .

Solution Summary: The author explains that the tension in the rope is greater than mg because the mass accelerates downward and hence the net force acts downward.

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Whether the tension in the rope is greater than, less than or equal to mg .

Whether the tension in the rope is greater than, less than or equal to 0 .

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Chapter 11 Solutions