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