Mayank give a situation to his student that there are four particles A, B, C and D and their relative velocities are given as VDC = 20 m/s toward the north, VBC = 20 m/s towards the east and VBA = 20 m/s towards the south. Then VDA is?
1
20 m/s north
2
20 m/s south
3
20 m/s east
4
20 m/s west