Physics · 2021
JEE Main · 25 July 2021, Shift 1 · Q23
A pendulum bob has a speed of 3 m / s at its lowest position. The pendulum is 50 cm long. The speed of bob, when the length makes an angle of 60^° to…
A pendulum bob has a speed of $\displaystyle 3 \mathrm{~m} / \mathrm{s}$ at its lowest position. The pendulum is $\displaystyle 50$ cm long. The speed of bob, when the length makes an angle of $\displaystyle 60^{\circ}$ to the vertical will be $\displaystyle \left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\right)$ \_\_\_\_ m/s.
Official answer
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