Physics · 2021
JEE Main · 24 February 2021, Shift 1 · Q23
A ball with a speed of 9 m/s collides with another identical ball at rest. After the collision, the direction of each ball makes an angle of 30^°…
A ball with a speed of $\displaystyle 9$ m/s collides with another identical ball at rest. After the collision, the direction of each ball makes an angle of $\displaystyle 30^{\circ}$ with the original direction. The ratio of velocities of the balls after collision is $\displaystyle x: y$, where $\displaystyle x$ is \_\_\_\_.
Official answer
1
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.