A body of mass m is placed on a rough su...

A body of mass m is placed on a rough surface with coefficient of friction `mu` inclined at `theta`. If the mass is in equilibrium , then

`theta=tan^-1 mu`

`theta=tan^-1frac(1)(mu)`

`theta=tan^-1frac(m)(mu)`

`theta=tan^-1frac(mu)(m)`

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