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| 1. |
A motorist travelled at a steady speed of 90km/hr. Express the speed in m/s. |
| Answer» ERT 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/sYou can ALSO simplify 1000/3600 as 5/18 for QUICK calculations | |