Multiple Choice

A large disc of radius 10 m initially at rest takes 200 full revolutions to reach 30 RPM. Calculate the total linear acceleration of a point at half way between the disc’s center and its edge, once the disc reaches 30 RPM. (You may assume it continues accelerating past that point)

A

15.7 m/s^{2}

B

24.7 m/s^{2}

C

49.3 m/s^{2}

D

98.7 m/s^{2}

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