Question

20. Two parallel rail tracks run north-south. The train A moves north with speed 54kmh–1 and train

B moves south with speed 90kmh–1. Find: [3]

(a) relative velocity of B w.r.t. A

(b) relative velocity of ground w.r.t. B​

Answer 1

Answer:

Relative Velocity

Explanation:

Train A = 54 kmph = Moves north

Train B = 90 kmph = moves south

A ) relative Velocity of B w.r.t A

V BA = Vb - Va = 90 - 54 = 36 kmph = 10 m / s.

B ) Relative Velocity of ground w.r.t B

= 90 kmph .