The speed of a racing car is 60 metre per second .what will be the speed in kilometre per hour?

Solution :

Given : 
Speed of car = 60 m/s 
Speed of car in kilometer per hour,
=> (60/1000) km/(1/3600) h
=> 60 × 3600/1000
=> 6 × 36
=> 216 km/h

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