Angular acceleration spin-dry cycle

AI Thread Summary
The discussion focuses on calculating the angular acceleration during the spin-dry cycle of a washing machine. The motor's speed decreases from 95 rad/s to 30 rad/s over an angle of 402 radians. The time taken for this change is calculated to be approximately 6.4 seconds. Using the formula for angular acceleration, the result is determined to be 10 rad/s². The calculations appear to be correct based on the provided values.
brncsfns5621
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Just checking to see fi I did the math right:

During the spin-dry cycle of a wash, the motor slows down from 95 rad/s to 30 rad/s while turning the drum through an angle of 402 radians. What is the magnitude of the angular acceleration of the motor?

= 1/2(Wo + W)t
402 = 1/2(95 + 30)t
402 = 62.5t
6.4 = t

ang. accel. = W - Wo / t - to
= 30 - 95 / 6.4
= 10 rad/s^2
 
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Looks good to me.
 

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