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Science CBSE Homework Assignments
Class 7
Motion and time
Motion and determination of speed
2.
Speed of train
Task:
3
m.
The distance between two stations is
240
\(km\). A train takes
4
\(h\) to cover this distance. Calculate the speed of the train.
The formula for the speed is given as
\(Uniform\ motion\ =\) \(\frac {Time\ period}{Speed}\)
\(Speed\ =\) \({Time\ taken} \times{Distance\ travelled}\)
\(Speed\ =\) \(\frac {1}{Time\ taken}\)
\(Speed\ =\) \(\frac {Distance\ travelled}{Time\ taken}\)
On substituting the given values in the formula, we get the speed as
\(km/h\).
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