Question: A 2 5 - cm - diameter circular saw blade has mass 0 . 8 5 kg , distributed uniformly in a disk. ( a

A 25-cm-diameter circular saw blade has mass 0.85 kg, distributed uniformly in a disk. (a) Whats its rotational kinetic energy at 3500 rpm?(b) What average power must be applied to bring the blade from rest to 3500 rpm in 3.2 s?

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