A ball rolls of the top of a stair way with a horizontal velocity π’ ms β1 . If the steps are β metre and π metre wide, the ball hits the edge of πth step, the time taken by the ball is

A ball rolls of the top of a stair way with a horizontal velocity π’ ms β1 . If the steps are β metre and π metre wide, the ball hits the edge of πth step, the time taken by the ball is

Question: A ball rolls of the top of a stair way with a horizontal velocity π’ ms β1 . If the steps are β metre and π metre wide, the ball hits the edge of πth step, the time taken by the ball is