SOLUTION: Hi
A train passes a 100m platform in 15sec and a man in 10sec .What is the average speed of the train.
Thanks
Algebra.Com
Question 1152769: Hi
A train passes a 100m platform in 15sec and a man in 10sec .What is the average speed of the train.
Thanks
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the length of the train in meters
Let = the speed of the train in m/s
--------------------------------------------------
(1)
(2)
-----------------------------
Plug (1) into (2)
(2)
(2)
(2)
The average speed is 20 m/sec
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get a 2nd opinion if needed
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