Physics · 2021
JEE Main · 24 February 2021, Shift 2 · Q21
Two solids A and B of mass 1 kg and 2 kg respectively are moving with equal linear momentum. The ratio of their kinetic energies ( K. E.)_A:( K.…
Two solids A and B of mass $\displaystyle 1$ kg and $\displaystyle 2$ kg respectively are moving with equal linear momentum. The ratio of their kinetic energies $\displaystyle (\mathrm{K} . \mathrm{E} .)_{\mathrm{A}}:(\mathrm{K} . \mathrm{E} .)_{\mathrm{B}}$ will be $\displaystyle \frac{\mathrm{A}}{1}$, so the value of A will be \_\_\_\_.
Official answer
2
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.