Q
A hoop and disc have same mass and radius. Their rotational K.E are related by an equation______________?
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A
A. K.e hoop = k.e disc
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B
B. K.e hoop = 2k.e disc
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C
C. K.e hoop = 1/2k.e disc
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D
D. K.e hoop = 4k.e disc
Correct Answer:
B. B. K.e hoop = 2k.e disc