1. convert each of the following speed into misec
(i) 72 km/h
(ii) / 2.6 km/kr
(iii) 29.4 km/h
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1 km/h=1000 m/sec OR 5 m/sec ----------@
3600. 18
I. 72km/h=72 *1000/3600=72000/3600=20m/s
ll. 2.6km/h=2.6*5/18=0.722222222222m/s
lll.29.4km/h=29.4*5/18=8.166666666666m/s
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