A body of mass ‘m’ is released from rest on an inclined plane in an elevator (moving up with acceleration ${\mathrm{a}}_0$). Find the time taken by the body to reach the bottom of the inclined plane.

• A

  $\sqrt{\frac{\mathrm{L}}{({\mathrm{a}}_0+\mathrm{g})\sin \mathrm{\alpha }}}$

• B

  $\mathrm{t}=\sqrt{\frac{2\mathrm{L}}{({\mathrm{a}}_{\mathrm{o}}+\mathrm{g})\mathrm{sin\alpha }}}$

• C

  $\sqrt{\frac{3\mathrm{L}}{({\mathrm{a}}_{\mathrm{o}}+\mathrm{g})\mathrm{sin\alpha }}}$

• D

  $2\sqrt{\frac{\mathrm{L}}{({\mathrm{a}}_{\mathrm{o}}+\mathrm{g})\mathrm{sin\alpha }}}$