The acceleration of a body sliding down a rough inclined plane is given by (coefficient of kinetic friction between the plane and the body is $\mu$)

• A

  $\mathrm{g}(\sin \mathrm{\theta }+\mathrm{\mu cos}\mathrm{\theta })$

• B

  $\mathrm{g}(\sin \mathrm{\theta }-\mathrm{\mu cos}\mathrm{\theta })$

• C

  $\mathrm{gsin}\mathrm{\theta }$

• D

  $\mathrm{\mu cos}\mathrm{\theta }$