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If is defined to be the mass of the block, then from question 3, we know that...
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If is defined to be the mass of the block, then from question 3, we know that
gravitational PE lost by block-Earth = linear KE gained by block + rotational KE gained by disc
Or,
Substitute your answers to the previous questions into this equation and rearrange to find . Select the correct answer from the multiple choices given below.
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