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16 January, 01:20

A body has a velocity of 72 km/hr. Find its value in m/s.

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  1. 16 January, 01:21
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    What you want to do is do unit analysis. There are 3600s in one hour and 1000m in 1km.

    72km/h * 1h/3600s * 1000m/1km

    this way the hours should cancel out and the km should cancel out leaving you with m/s

    so 72/3600 * 1000 gives you 21.11m/s
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