Question

If a car covers 2/5th of the total distance with v, speed and
3/5th distance with v, then average speed is
(b) IT v2
2V,V2
(C) v + V2
5v, V2
(d) 3v, +2V2




step by step solution​

Answer 1

Explanation:

let X be the distance then

T1=(2/5x)/v

T2=(3/5X)/v

speed=distance/time

=X/t1+t2

X/(2/5X)/v+(3/5X)/v

=v