Can we change the period of oscillation of a swing by sitting and standing on the plank of swing while swinging? Explain.

Can we change the period of oscillation of a swing by sitting and stan

1.	Can we change the period of oscillation of a swing by sitting and standing on the plank of swing while swinging? Explain.
Answer» Solution :Yes, When a PERSON stands on the PLANK and swings, the centre of MASS of the system moves upwards and the length of the pendulum DECREASES. Hence its time PERIOD decreases.