A stone is tied to a 0.5 m long string and rotated in a vertical circle with the other end of the string at the center. At one instant, the stone is at its lowest position and has a velocity of 3 m/s. Determine the magnitude of the change in velocity when it reaches a position where the string is horizontal.<br /><br />Watch the video about ROTATIONAL KINEMATICS in full:<br />https://dailymotion.com/playlist/x8z9ke<br /><br />#rotationalkinematics #rotationalmotion<br />
