A body is sliding down an inclined plane having coefficient of friction 1/3. If the normal reaction is three times that of the resultant downward force along the incline, the angle between the inclined plane and the horizontal is

A body is sliding down an inclined plane having coefficient of frictio

1.	A body is sliding down an inclined plane having coefficient of friction 1/3. If the normal reaction is three times that of the resultant downward force along the incline, the angle between the inclined plane and the horizontal is
Answer» `TAN^(-1) (1/2)` `tan^(-1) (2)` `tan^(-1)(2/3)` `tan^(-1) (3/2)` ANSWER :C