Question

A simple pendulum, while oscillating, rises to a maximum vertical height of
5cm from its rest position when it reaches to its extreme position on one
side.If mass of the bob of simple pendulum is 500g and g=10m/s2
,find (i)
the total energy of simple pendulum at any instant while oscillating, and (ii)
the velocity of the bob at its mean position.State the assumption made in you
calculation

Answer 1

Answer:

Explanation:

               use conservation of energy then ,

                        total energy is mgh = 0.5 x 10 x 0.05 =0.25

                 at the bottom only ke is there so again conserve energy

                   1/2 x mv² = mgh

                   1/2 x 0.5 v² = 0.25

                                v² = 1   i.e v = 1

        hope u understand and let me know