A motorist travelled at a steady speed of 90km/hr. Express the speed in m/s.
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To convert 90km/hr to m/s we will multiply it by 1000/3600 as there are 1000m in a km and 3600s in an hour.
so,
90*1000/3600=25m/s
You can also simplify 1000/3600 as 5/18 for quick calculations
so,
90*1000/3600=25m/s
You can also simplify 1000/3600 as 5/18 for quick calculations
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1km/hr = 5/18 m/s
90 km/hr = 90*5/18 = 25 m/s
90 km/hr = 90*5/18 = 25 m/s
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