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cse โ€ข paper_1 โ€ข waves_oscillations

[UPSC CSE 1987] Waves (Q112, 20M)

The equation for displacement of point on a damped oscillator is given by x - 5e^{-0.2t} \sin \frac{\pi}{2}t \text{ metre} Find the velocity of the oscillating point at t = \frac{T}{4} and T_p where T is the time-period of the oscillator.

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