Physics · 2022
JEE Main · 27 June 2022, Shift 1 · Q31
A projectile is launched at an angle ' α ' with the horizontal with a velocity 20 ms^-1. After 10 s, its inclination with horizontal is ' β '. The…
A projectile is launched at an angle ' $\displaystyle \alpha$ ' with the horizontal with a velocity $\displaystyle 20 \mathrm{~ms}^{-1}$. After $\displaystyle 10$ s , its inclination with horizontal is ' $\displaystyle \beta$ '. The value of $\displaystyle \tan \beta$ will be : $\displaystyle \left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)$.
Official answer
(2)
$\displaystyle \tan \alpha-5 \sec \alpha$
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.