A stone tied to a string of length `L` is whirled in a vertical circle with the ofter end of
Channel: Doubtnut
Date: 05/07/2020

A stone tied to a string of length `L` is whirled in a vertical circle with the ofter end of the string at  the centre . At a certin instant of time , the stone is at its lowest position , and has a speed is , the magintube of the change in its velocity as it reached a positive when the string is horizontal is