Physics · 2023
JEE Main · 31 January 2023, Shift 1 · Q22
A solid sphere of mass 1 kg rolls without slipping on a plane surface. Its kinetic energy is 7 × 10^-3 J. The speed of the centre of mass of the…
A solid sphere of mass $\displaystyle 1$ kg rolls without slipping on a plane surface. Its kinetic energy is $\displaystyle 7 \times 10^{-3} \mathrm{~J}$. The speed of the centre of mass of the sphere is $\displaystyle \_\_\_\_$ $\displaystyle \mathrm{cm} \mathrm{s}^{-1}$.
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From NTA’s final answer key for this paper.
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.