Physics · 2023
JEE Main · 11 April 2023, Shift 1 · Q60
A projectile fired at 30^° to the ground is observed to be at same height at time 3 s and 5 s after projection, during its flight. The speed of…
A projectile fired at $\displaystyle 30^{\circ}$ to the ground is observed to be at same height at time $\displaystyle 3$ s and $\displaystyle 5$ s after projection, during its flight. The speed of projection of the projectile is
$\displaystyle \_\_\_\_$ $\displaystyle \mathrm{m} \mathrm{s}^{-1}$.
(Given $\displaystyle g=10 \mathrm{~m} \mathrm{~s}^{-2}$ )
Official answer
From NTA’s final answer key for this paper.
80
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.