A 270m long train running at the speed of 120kmph crosses another train running in opposite ...

A 270m long train running at the speed of 120kmph crosses another train running in opposite direction at the speed of 80kmph in 9 second. What is the length of the other train?

Quiz

Answer/Solution

230m

Steps/Work

Relative speed = 120+80 = 200*5/18 = 500/9 m/s
Let the length of the other train be x meters
x+270/9 = 500/9
x = 230m
Answer is B

Physics Calculator / Auto Solver

A m long train running at the speed of kmph crosses another train running in opposite direction at the speed of kmph in second. What is the length of the other train?

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