Relative Velocity
Every motion is relative as it has to be observed with respect to an observer. Relative velocity is a measurement of velocity of an object with respect to other observer. It is defined as the time rate of change of relative position of one object with respect to another.
For example, if rain is falling vertically with a velocity `v_r` and a man is moving horizontally with `v_m`, the man can protect himself from the rain if he holds his umbrella in the direction of relative velocity of rain w.r.t. man.
A train is moving towards East and a car is along North, both with same speed. The observed direction of car to the passenger in the train is
Options:
(a) East-North direction
(b) West-North direction
(c) South-East direction
(d) None of the above