A body is liding down an inclined plane have coefficient of friction 0.5. If the normal reaction is twice that of the resultant downward force along the incline, the angle between the inclined plane and the horizontal is

A body is liding down an inclined plane have coefficient of friction 0

1.	A body is liding down an inclined plane have coefficient of friction 0.5. If the normal reaction is twice that of the resultant downward force along the incline, the angle between the inclined plane and the horizontal is
Answer» `90^(@)` `30^(@)` `60^(@)` `45^(@)` ANSWER :D