A pendulum with time period of `1s` is losing energy due to damping. At time its energy is `45 J`.
Channel: Doubtnut
Date: 2020-01-28

A pendulum with time period of `1s` is losing energy due to damping. At time its energy is `45 J`. If after completing `15` oscillations, its energy has become `15 J`. Its damping constant (in `s^(-1)`) is :-