Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.600m at a rate of 8.00rev/s. If he increased the length to 0.900m he could revolve the sling only 6:00 times per second. a) Which rate of rotation gives the greater speed for the stone at the end of the sling? b) What is the centripetal acceleration of the stone at 8:00rev/s? c) What is the centripetal acceleration of 6:00rev/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.