Скачать или смотреть Figure shows a sine curve, as the displacement time curve of a particle | Class 12 | Physics

Figure shows a sine curve, as the displacement time curve of a particle executing rectilinear motion having equation $x=4 \sin \left(\frac{\pi}{2} t\right)$. The velocity of particle at $t=\frac{2}{3} s$ is
(B) $\sqrt{3} \pi \mathrm{ms}^{-1}$
(C) $\frac{\pi}{2} \mathrm{~ms}^{-1}$
(D) None of these

This question is from [Subject: Physics | Topic: Mechanics | Class: 12th ]
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