time speed and distance
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time speed and distance
by suraj » Tue Jul 13, 2010 1:51 am
Two trains are traveling in the same direction at 50km/hr and 30 km/hr respectively.the faster train crosses a man in the slower train in 18 seconds.find the length of the faster train?
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Re: time speed and distance
by ravihanda » Tue Jul 13, 2010 8:57 pm
Hi Suraj,
I am just assuming that the man in the slower train is static. Relative speed = 50 - 30 = 20 kmph = 100/18 m/sec = 50/9 m/sec
Time taken to cross the man = 18 sec
Length = 50/9 x 18 = 100 m
I am just assuming that the man in the slower train is static. Relative speed = 50 - 30 = 20 kmph = 100/18 m/sec = 50/9 m/sec
Time taken to cross the man = 18 sec
Length = 50/9 x 18 = 100 m
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