Work Energy And Power Question 127

Question: Two masses mA and mB moving with velocities vA and vB in opposite directions collide elastically. After that the masses mA and mB move with velocity vB and vA respectively. The ratio (mA/mB ) is [RPMT 2003, AFMC 2002]

Options:

A) 1

B) vAvBvA+vB

C) (mA+mB)/mA

D) vA/vB

Show Answer

Answer:

Correct Answer: A

Solution:

Since bodies exchange their velocities, hence their masses are equal so that mAmB=1



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