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Q.

Two billiard balls each of mass 0.05 kg moving in opposite directions with speed 6ms-1. They undergo head-on elastic collision. The impulse imparted to each ball due to the other is       

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a

0.6 kgms-1

b

zero

c

 1.2 kgms-1   

d

0.3 kgms-1    

answer is B.

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Detailed Solution

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ΔP¯=mv→−u→

⇒ΔP=0.056+6=0.6 kg ms−1

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