Physics · 2022
JEE Main · 27 June 2022, Shift 1 · Q32
A girl standing on road holds her umbrella at 45° with the vertical to keep the rain away. If she starts running without umbrella with a speed of 15…
A girl standing on road holds her umbrella at $\displaystyle 45$° with the vertical to keep the rain away. If she starts running without umbrella with a speed of $\displaystyle 15 \sqrt{2} \mathrm{kmh}^{-1}$, the rain drops hit her head vertically. The speed of rain drops with respect to the moving girl is :
Official answer
(3)
$\displaystyle \frac{30}{\sqrt{2}} \mathrm{kmh}^{-1}$
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.