A stone tied at the end of string is whirled in a circle. If the string break, the stone flies away tangentially . Why ?

Explanation

When a stone is going aaround a circular path the instantaneous velcity of stone is acting along tangent to the circle. When the string breaks, the centripetal force stops accting, Due to inertial, the stone continues to move aling the tangent to circular path . That is why the stone flies off tangentially to the circular path.