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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.

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Statement -1 is false, Statement -2 is true

Statement -1 is true, Statement -2 is true; Statement -2 is the correct explanation of Statement -1

Statement -1 is true, Statement -2 is false

Statement-1 is true, Statement-2 is true; Statement-2 is not the correct explanation of Statement-1

answer is B.

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Detailed Solution

$If it is a completely inelastic collision, then$

$\Rightarrow v = \frac{m_{1} v_{1} + m_{2} v_{2}}{m_{1} + m_{2}}$

$KE = \frac{p_{1}^{2}}{2 m_{1}} + \frac{p_{2}^{2}}{2 m_{2}}$

$As p_{1} and p_{2} both simultaneously cannot be zero,$

$total KE can not be lost.$

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