A turntable of radius 60 cm undergoes constant acceleration from rest to 3.0 rev/s in 2.5 seconds. (a) Through what angle does the turntable rotate between t = 0 and t = 1.8 s? b) For a dust particle sitting on the edge of the turntable, what is its centripetal acceleration at t = 2.0 s?

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.