Question

Two trains A and B are moving with velocity 120 km per hour and 80 kilometre per hour respectively find the relative velocity if 1.they move in same direction
2.they move in opposite direction

Answer 1

1.: from A's perspective, B is travelling 40 km/h in the opposite direction to the travelling direction, from B's perspective, A is travalling at 40 km/h in the travelling direction.

2.: For both, the other is travelling at 200 km/h in the opposite direction to the travelling direction

Answer 2

Answer:40 and 200

Explanation:when they move in same direction relative Velocity = 120-80=40

When they move in opposite direction relative velocity = 120- (-80)= 200

Here -80 is taken to represent

opposite direction