A horizontal force applied on a body on a rough horizontal surface produces an acceleration 'a'. If coefficient of friction between the body & surface which is m is reduced to m/3, the accele-ration increases by 2 units. The value of m is

A horizontal force applied on a body on a rough horizontal surface pro

1.	A horizontal force applied on a body on a rough horizontal surface produces an acceleration 'a'. If coefficient of friction between the body & surface which is m is reduced to m/3, the accele-ration increases by 2 units. The value of m is
Answer» `2//3g` `3//g2` `3//g` `1//g` ANSWER :C