A uniform metre scale of mass 2kg is suspended from on end. If it is displaced through an angle 60^(@) from the vertical, the increases in its potential energy is ,

A uniform metre scale of mass 2kg is suspended from on end. If it is d

1.	A uniform metre scale of mass 2kg is suspended from on end. If it is displaced through an angle 60^(@) from the vertical, the increases in its potential energy is ,
Answer» 4.9 J 9.8 j `9.8 SQRT(3)j` `4.9 (2 - sqrt(3))j` ANSWER :A