Isn’t the answer B?

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I think it’s option D, coz V(f) > V(i) is not possible…

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elaborate pls

c option is 1/root (3)

What’s the given answer?

Yes, I think it is correct, because if we write impulse equation, we get v_f as \sqrt{3}. But coefficient of restitution will be greater than 1 if that is the case. So, the given case is not possible.

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