Physics · 2020
JEE Main · 9 January 2020, Shift 1 · Q3
Two particles of equal mass m have respective initial velocities u i and u ((i + j)/2). They collide completely inelastically. The energy lost in the…
Two particles of equal mass m have respective initial velocities $\displaystyle \mathrm{u} \hat{i}$ and $\displaystyle \mathrm{u}\left(\frac{\hat{i}+\hat{j}}{2}\right)$. They collide completely inelastically. The energy lost in the process is :
Official answer
(1)
$\displaystyle \frac{1}{8} \mathrm{mu}^2$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.