Center of MassEasy
Question
Two identical particles move towards each other with velocity 2v and v respectively. The velocity of centre of mass is
Options
A.v
B.v/3
C.v/2
D.zero
Solution
Conserving Linear Momentum
2Mvc = 2Mv - Mv ⇒ vc = v/2
2Mvc = 2Mv - Mv ⇒ vc = v/2
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