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Question
Express the following in m s−1.
1 km h−1
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Solution
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)/(36s)`
∴ 1 km h−1 = `(0.278 xx m)/s`
∴ 1 km h−1 = 0.278 ms−1
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