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Question:

Math homework problem?

An electric hoist is being used to lift a beam (see figure). The diameter of the drum on the hoist is x = 14 inches, and the beam must be raised y = 2.9 feet. Find the number of degrees through which the drum must rotate.

Answer:

2.9feet = 33 inches i.e 33inches to be wound on 14inch drum 1 revolution = 360 degrees =pi x diameter = 43.98inches Simple proportion: 43.98 = 360 33 = ? 270 degrees

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