Question

Two identical balls each of mass 4 kg are moving towards each other with speeds 2 m/s and 3 m/s respectively.
They undergo head on perfectly elastic collision. Then impulse imparted by one ball on other is :-

a) 12 Ns
b) 8 Ns
c) 20 Ns
d) 40 Ns​

Answer 1

Answer: c. 20 Ns

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