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Physics · WORK, ENERGY AND POWER
हिन्दीIn a one-dimensional elastic collision, a fast-moving lighter particle of mass \( m_1 \) collides with a massive stationary target of mass \( m_2 \) (\( m_2 \gg m_1 \)). Immediately after the collision, the lighter mass:
Correct answer · Option 4
reverses its velocity with almost the same initial speed while the massive body remains virtually undisturbed
Explanation
When \( m_2 \gg m_1 \), the formulas give \( v_{1f} \approx -v_{1i} \) and \( v_{2f} \approx 0 \). The lighter mass reverses its velocity with virtually unchanged speed, and the heavier mass remains practically at rest.
