QJEEM23Ph7912: JEE Main 2023 Physics - Class 11 JEEM23Ph7912 Solution: A body is moving with constant speed, in a circle of radius .…

Question

Verified Solution • 2025–26 Session moderate

A body is moving with constant speed, in a circle of radius

10 \mathrm{~m}

. The body completes one revolution in

4 \mathrm{~s}

. At the end of 3rd second, the displacement of body (in

\mathrm{m}

) from its starting point is :

Accepted Answer

\begin{aligned}&amp; \mathrm{\omega}=\frac{2 \pi}{\mathrm{T}}=\frac{2 \pi}{4}=\frac{\pi}{2} \mathrm{rad} / \mathrm{s} \\\\&amp; \theta=\mathrm{\omega t} \\\\&amp; \theta=\frac{\pi}{2} \times 3 \\\\&amp; \theta=\frac{3 \pi}{2} \mathrm{rad}\end{aligned}

\begin{aligned}&amp; r=10 \mathrm{~m} \\\\&amp; T=4 \mathrm{sec} \\\\&amp; d=\sqrt{2}(10) \mathrm{m}\end{aligned}

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