1. The problem statement, all variables and given/known data Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.750 m at the rate of 10.0 rev/s. If he increased the length to 1.050 m, he could revolve the sling only 8.00 times per second. What is the speed of the stone for each rate of rotation? a) .... m/s at 10.0 rev/s b) .... m/s at 8.00 rev/s 3. The attempt at a solution I can probably figure this out but I forgot my book and don't want to guess. Please could you tell me the equation that I use. Thanks.