Statement-1 : Two particles moving in the same direction do not lose all their energy in a completely inelastic collision. Statement-2 : Principle of conservation of momentum holds true for all kinds

Question

Statement-1 : Two particles moving in the same direction do not lose all their energy in a completely inelastic collision. Statement-2 : Principle of conservation of momentum holds true for all kinds of collisions. Of the four choices given after the statements, choose the one that best describes the two statements. Of the four choices given after the statements, choose the one that best describes the two statements.

TestHub · Accepted Answer

If it is a completely inelastic collision then $m_{1} v_{1} + m_{2} v_{2} = m_{1} v + m_{2} v v = \frac{m _{1} v _{1} + m _{2} v _{2}}{m _{1} + m _{2}} K \cdot E = \frac{p _{1}^{2}}{2 m _{1}} + \frac{p _{2}^{2}}{2 m _{2}}$ as $p_{1}$ and $p_{2}$ both simultaneously cannot be zero therefore total KE cannot be lost.

Physics - Center of Mass Question with Solution | TestHub

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