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प्रश्न
Express the following in m s-1.
1 km h-1
उत्तर
1 km h-1 = `(1 " km")/(1 " h") = (1 xx 1000 " m")/(60 xx 60 " s")`
`=> 1 " km" " h"^-1 = (1 xx 10 " m")/(6 xx 6 " s")`
∴ 1 km h-1 = `(10" m")/(36 " s")`
∴ 1 km h-1 = `(0.278 xx " m")/"s"`
∴ 1 km h-1 = 0.278 ms-1
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