A person travelling on a straight line moves with a uniform velocity v_(1) for a distance x and with a uniform velocity v_(2) for the next equal distance. The average velocity v is given by

A person travelling on a straight line moves with a uniform velocity v

1.	A person travelling on a straight line moves with a uniform velocity v_(1) for a distance x and with a uniform velocity v_(2) for the next equal distance. The average velocity v is given by
Answer» `V=(v_(1)+v_(2))/(2)` `v=sqrt(v_(1)v_(2))` `(2)/(v)=(1)/(v_(1))+(1)/(v_(2))` `(1)/(v)=(1)/(v_(1))+(1)/(v_(2))` ANSWER :C