Question
Download Solution PDFA 100 metre long train moving in a uniform speed of 20 m/sec crosses a bridge of length 1 km . The time taken by the train to cross the bridge is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Length of train (Ltrain) = 100 m
Speed of train (v) = 20 m/sec
Length of bridge (Lbridge) = 1 km = 1000 m
Formula used:
Total distance to be covered = Ltrain + Lbridge
Time taken (t) = Total distance ÷ Speed
Calculations:
Total distance = Ltrain + Lbridge
⇒ Total distance = 100 + 1000 = 1100 m
Time taken (t) = Total distance ÷ Speed
⇒ t = 1100 ÷ 20 = 55 seconds
∴ The correct answer is option (3).
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