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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two parallel rail tracks run north-south Train A moves north with a speed of 54 km h^(-1) and train B moves south with a speed of 90 km h^(-1). What is the a. relative velocity of B with respect to A? b. relaity of a monkey running on the roof of the train A against its motion (with its velocity of 18 km h^(1) with respect ot the train A ) as observed by a man standing on the fround?

Two parallel rail tracks run north-south Train A moves north with a speed of 54 km h^(-1) and train B moves south with a speed of 90 km h^(-1). What is the a. relative velocity of B with respect to A? b. relaity of a monkey running on the roof of the train A against its motion (with its velocity of 18 km h^(1) with respect ot the train A ) as observed by a man standing on the fround?

A person walks up a stationary escalation in t 1 ​ second. If he remains stationary on the escalator then a. Determine the speed of man with respect to the escalator. b. Determine the speed of the escalator. c. How much time would it take him to walk up the moving escalator? then it can take him up in t 2 ​ second. If the length of the escalator is L