Question
Download Solution PDFA train of length 300 metres crosses a tree in 20 seconds and crosses another train of the same length travelling in opposite direction in 25 seconds. What is the speed of the second train?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven Data:
Length of the train = 300 m.
Time to cross a tree = 20 sec.
Time to cross another train = 25 sec.
Formula:
Speed = Distance/Time
Solution:
⇒ Speed of first train = Length of train/Time = 300/20 = 15 m/s.
⇒ Relative speed while crossing the second train = Total length/Time
= (300 + 300) / 25 = 24 m/s.
⇒ Speed of the second train = Relative speed - Speed of the first train
= 24 - 15 = 9 m/s
Hence, the speed of the second train is 9 m/s.
Last updated on May 28, 2025
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