question_answer

At what points along the path of a simple pendulum is the tension in the string (i) maximum and (ii) minimum?

Answer:

                (i) The tension is maximum at the mean position and is equal to mg, where m is the mass of the bob. (ii) The tension is minimum at either extreme position and is equal to \[~mg\] \[\cos \theta \], where \[\theta \] is the angle through which the string gets displaced to reach the extreme position.