Question

A man walks at the speed of 4 kmh. A train coming from behind him at 22 km/h passes by
him in 30 s. Find the length of the train.
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Answer 1

Answer:

216.6 m

Step-by-step explanation:

let the lenght of the be d

find by relative speed:

d/ t = s1 + s2

d/30= 6.11111 m/s + 1.11111 m/s

d = 7.2222 * 30

d = 216.6 m

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