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Physics, 09.02.2021 03:50 gedntrxAa

A child is standing on the platform of a station, watching the trains. .
A train travelling at 30 m/s takes 3 s to pass the child.
What is the length of the train?
A 10m
B 30 m
C 90 m
D 135 m

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A child is standing on the platform of a station, watching the trains. .
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