1.

A person travels along a straight road for half the distance with velocity V_(1) and the remaining half distance with velocity V_(2) the average velocity is given by

Answer»

`v_(1)v_(2)`
`((v_(2))/(v_(1)))^(2)`
`(v_(1)+v_(2))/(2)`
`(2v_(1)v_(2))/(v_(1)+v_(2))`

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