Question

Two cars A and B are moving along a straight Road in the same direction with velocities of 25km/h and 40km/h, respectively find the velocity of car B relative to car A.

Answer 1

Velocity of $B$ with respect to $A$ $= v_B-v_A$

$=(40-25)\ Km/h$

$=15 \ Km/h$ in the direction of motion.