1.

A hoop and disc have same mass and radius. Their rotational K.E are related by an equation______________?

A. K.E hoop = K.E disc
B. K.E hoop = 2K.E disc
C. K.E hoop = 1/2K.E disc
D. K.E hoop = 4K.E disc
Answer» C. K.E hoop = 1/2K.E disc


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