(a) Explanation Given info: The mass of each metal block is m . Write the expression for the weight of the metal block is, w = m g Here, g is the acceleration due to gravity. The force acting on the spring before the string is cut is, F spring = m g + m g = 2 m g When the spring is cut, the force experienced by the upper block is, F U = F spring − w Substitute 2 m g for F spring and m g for w in above equation (b) To determine The acceleration of the center of mass of the two blocks system immediately after the string is cut.

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ISBN: 9780321976444

Author: James S. 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 9, Problem 53PCE

(a)

To determine

The net force acting on the two blocks system immediately after the string is cut.

(b)

To determine

The acceleration of the center of mass of the two blocks system immediately after the string is cut.

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Chapter 9, Problem 52PCE

Chapter 9, Problem 54PCE

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The net force acting on the two blocks system immediately after the string is cut.

Solution Summary: The author determines the net force acting on the two blocks system immediately after the string is cut.

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The net force acting on the two blocks system immediately after the string is cut.

The acceleration of the center of mass of the two blocks system immediately after the string is cut.

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