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Physics / Sears and Zemansky's University Physics with Modern Physics 13 / Chapter 11 / Problem 9DQ

Sears and Zemansky's University Physics with Modern Physics | 13th Edition | ISBN: 9780321696861 | Authors: Hugh D. Young; Roger A. Freedman; A. Lewis Ford

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Solved: An object consists of a ball of weight W glued to

Chapter 11, Problem 9DQ

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QUESTION:

Problem 9DQ

An object consists of a ball of weight W glued to the end of a uniform bar also of weight W. If you release it from rest, with the bar horizontal, what will its behavior be as it falls if air resistance is negligible? Will it (a) remain horizontal; (b) rotate about its center of gravity; (c) rotate about the ball; or (d) rotate so that the ball swings downward? Explain your reasoning.

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QUESTION:

Problem 9DQ

An object consists of a ball of weight W glued to the end of a uniform bar also of weight W. If you release it from rest, with the bar horizontal, what will its behavior be as it falls if air resistance is negligible? Will it (a) remain horizontal; (b) rotate about its center of gravity; (c) rotate about the ball; or (d) rotate so that the ball swings downward? Explain your reasoning.

ANSWER:

Solution 9DQ

Step 1:

Suppose, a ball having weight W which is fixed at one end of the rod having weight W is falling from a horizontal position.

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