Suppose two trains A and B are moving with uniform velocities along parallel tracks but in opposite directions. Let the velocity of train A be 40kmh^(-1) due east and that of train B be 40kmh^(-1) due west. Calculate the relative velocities of the trains.

Suppose two trains A and B are moving with uniform velocities along pa

1.	Suppose two trains A and B are moving with uniform velocities along parallel tracks but in opposite directions. Let the velocity of train A be 40kmh^(-1) due east and that of train B be 40kmh^(-1) due west. Calculate the relative velocities of the trains.
Answer» Solution :RELATIVE velocity of A with respect to B, `v_(AB)=80kmh^(-1)` due east. Thus to a passenger in train B, the train A will APPEAR to move east with a velocity of `80kmh^(-1)` The relative velocity of B with respect to A, `V_(BA)=80kmh^(-1)` due west. To a passenger in train A, the train B will appear to move westwards with a velocity of `80kmh^(-1)`