Question

In a race of 300m Mohan complete it in 40s find his speed in km /h

Answer 1

Answer:

Is your answer

Explanation:

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Answer 2

Explanation:

Distance mohan cover=300m

time he take to cover=40s

so speed formula=

$\frac{d}{t}$

$therefore \\ = \frac{300m}{40s} = 7.5m |s$

so the speed of mohan is 7.5m/s

you want answer in km/hr

so 1m=1/1000km

and 1sec=1/3600hr

so to convert it into km/hr multiply 7.5m/s by the above equation