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Physics · MOTION IN A PLANE
हिन्दीA projectile is launched from ground level with an initial speed \( v_o = 20\text{ m/s} \) at an angle \( \theta_o = 30^\circ \) above the horizontal. Taking \( g = 10\text{ m/s}^2 \), the total time of flight is:
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Correct answer · Option A
2 s
Explanation
\( T_f = \frac{2v_o\sin\theta_o}{g} = \frac{2 \times 20 \times \sin 30^\circ}{10} = \frac{20 \times 1}{10} = 2\text{ s} \).
