A 90metres long train is running at a speed of 54 km/hr if it 30 seconds to cross a platform. Find the length of the platform?
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A 90metres long train is running at a speed of 54 km/hr if it 30 seconds to cross a platform. Find the length of the platform?
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Answer:
Train velocity = V
= 54 km/hr
= 15m/s
Distance = S
= 90 m
Time = T
= ?
Using formula,
S = V × T
or, T = S/T
or, T = 90m ÷ 15m/s
or, T = 6 seconds.