a body covers a distance of 10km in 4 hours.calculate it's speed in metres/second and km/hour
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Ans. Speed = Distance / time
so , D = 10 km
T = 4 hrs
so speed = 10 /4 = 2.5 km / hr.
speed in m/ s. multiply speed into 5/ 18 = 2.5 × 5/ 18
so speed = 0. 694 m/ s .
so , D = 10 km
T = 4 hrs
so speed = 10 /4 = 2.5 km / hr.
speed in m/ s. multiply speed into 5/ 18 = 2.5 × 5/ 18
so speed = 0. 694 m/ s .
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