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

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

1.	A uniform metre scale of mass 2kg is suspended from one end. If it is displaced through an angle 60^(@) from the vertical, the increase in its potential energy is,
Answer» 4.9J 9.8J `9.8 sqrt3J` `4.9 (2- SQRT3)J` ANSWER :A