Question: Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.600 m at

Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.600 m at the rate of 8.00 rev/s. If he increased the length to 0.900 m, 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 8.00 rev/s?
(c) What is the centripetal acceleration at 6.00 rev/s?

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