Question : A ball of mass 0.25 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 25N. What is the maximum speed with which the ball can be moved?
(A) 14ms^{-1}
(B) 3ms^{-1}
(C) 3.92ms^{-1}
(D) 5ms^{-1}
Answer : option (A)
Solution :
