Calculate the velocity of the bob of a simple pendulum at its mean position if it is able to rise to a vertical height of 10 cm. Take `g=9.8m//s^(2)`.

Explanation

`{:("K.E. of the"),("bob at its"),("mean position"):}}={{:("P.E. at"),("its highest"),("position"):}`
i.e., `(1)/(2)mv^(2)=mgh`
Velocity of the bob
`v=sqrt(2gh)`
`=sqrt(2xx9.8xx10`
`=sqrt(1.96)`
`v=1.4m//s`