A ball of mass 0.5 kg attached to the end of a string of length 1.96 m is moving in a horizontal cir

Question

A ball of mass 0.5 kg attached to the end of a string of length 1.96 m is moving in a horizontal circle. The string will break if the tension is more than 25 N . What is the maximum speed with which the ball can be moved ?\

Professor PC Thomas Classes · Answer

(c) $: \frac{m v^{2}}{r}=25 ; \quad v=\sqrt{\frac{25 	imes 1.96}{0.5}}=9.9 \mathrm{~m} / \mathrm{s}$.