What is the velocity of the bob of a simple pendulum at its mean position, if it is able to rise to vertical height of  10 cm (Take  $\mathrm{g}=9.8\mathrm{m}/{\mathrm{s}}^2)$

• A

  0.6 m/s

• B

  1.4 m/s

• C

  1.8 m/s

• D

  2.2 m/s