If the velocities of three molecules are 2 m/s, 3 m/s, 4m/s respectively. Then the mean velocity will be
A. 4.5 m/s
B. 3 m/s
C. 2 m/s
D. 5 m/s

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Correct Answer - B
`overline(C)=(c_(1)+c_(2)+c_(3))/(3)`

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