Displacement versus time curve for a particle executing SHM is shown in figure. Idendify the points marked at which (i) velocity of the oscillator is zero, (ii) speed of the oscillator is maximum.

Displacement versus time curve for a particle executing SHM is shown i

1.	Displacement versus time curve for a particle executing SHM is shown in figure. Idendify the points marked at which (i) velocity of the oscillator is zero, (ii) speed of the oscillator is maximum.
Answer» Solution :In displacement time graph of SHM, the crest and troughs represents maximum displacement and velocity of the OSCILLATOR is zero. HENCE (i) At points A, C, E and G velocity is zero. (II) At mean position speed is maximum. Hence at points B, D, F and H speed is maximum.