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Physics · WORK, ENERGY AND POWER
हिन्दीA body of mass \( m \) moving with an initial velocity \( v_1 \) undergoes a head-on one-dimensional elastic collision with an identical body of mass \( m \) initially at rest. The velocities of the first and second body after collision are respectively:
Correct answer · Option 2
\( 0 \) and \( v_1 \)
Explanation
For equal masses in a 1D elastic collision with \( v_{2i} = 0 \), velocities are completely exchanged: \( v_{1f} = 0 \) and \( v_{2f} = v_{1i} = v_1 \).
