1.

A car completes the first half of its journey with a velocity upsilon_(1) and the rest half with a velocity upsilon_(2). Then the average velocity of the car for the whole journey is :

Answer»

`v=sqrt(v_1 v_2)`
`v=sqrt((v_2)/(v_1))`
`(2)/(v)=(1)/(v_1)+(1)/(v_2)`
`v=(v_1 +v_2)/(2)`

SOLUTION :`V_(av)=("TOTAL distance")/("total time")=(V_(1)xxt/2+V_2xxt/2)/(t)=(V_(1)+V_2)/(2)`


Discussion

No Comment Found

Related InterviewSolutions