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A drill bit accelerated from rest to 2500 rpm in 2 seconds. a) What was the...

A drill bit accelerated from rest to 2500 rpm in 2 seconds.

a) What was the angular acceleration of the drill bit?

b) How many times did the drill bit rotate while it was accelerating?

c) If the appropriate moment of inertia for the drill bit is 5x10^-7 kg*m^2, what is the magnitude of the torque provided by the drill motor?

d) How much kinetic energy did the drill bit acquire

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