A rotating platform of radius R = 2.2 cm starts from rest and accelerates with uniform angular acceleration α = 34 rad/s

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A rotating platform of radius R = 2.2 cmstarts from rest and accelerates with uniform angularacceleration α = 34 rad/s2
a) Write an expression that gives the centripetalacceleration on the edge of the platform as a function oftime, ac(t).
b) Write an expression for the time at which themagnitudes of the centripetal and tangential accelerations at theedge will be equal.
c) Calculate the time, t inseconds, for when the magnitudes of the centripetal and tangentialaccelerations are equal.