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A boy is walking along a road with velocity 1.5 kilometre per hour per hour take to cover the distance a 20 metre in that a Express the velocity in a metre per second we find the time taken to cover the distance of 280 metre

Posted by Jeevitha R 4 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Mohd Faizan 4 years, 1 month ago

Displacement=9 m Velocity= 1.5 km/ hr = = (1000/3600)m/s =5/18 m/s To convert km/hr to m/s , just multiply the given value of km/hr by 5/18 1.5 km/hr = 1.5×5/18 = 0.4166 m/s velocity=displacement/Time Time=Displacement/velocity =9/0.4166 =21.603 sec

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