Question

12. Two parallel rail tracks run north-south. Train
A moves north with a speed of 15 m/s and train
B moves south with a speed of 25 m/s.
(a) What is the velocity of B with respect to A?
(b) What is the velocity of ground with respect to B?
(c) What is the velocity of a monkey running on
the roof of the train A against its motion (with a
velocity of 5 m/s with respect to the train A) as
observed by a man standing on the ground.
(SAY 2018)​

Answer 1

this is the answer.................
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