Two particles move parallel tox-axis about the origin with same amplitude 'a' and for omega . At a certain instant they are found at a distance a/3 from the origin on opposite sides but localities are in the same direction. What is the phase difference between the two?

Two particles move parallel tox-axis about the origin with same amplit

1.	Two particles move parallel tox-axis about the origin with same amplitude 'a' and for omega . At a certain instant they are found at a distance a/3 from the origin on opposite sides but localities are in the same direction. What is the phase difference between the two?
Answer» `COS^(-1) 7/9` `cos^(-1) 5/9` `cos^(-1) 4/9` `cos^(-1)1/9` ANSWER :C