1.

Ritu takes 20 minutes to cover a distance of 3.2 km on a bicycle calculate her speed in metre per second

Answer»

T=20min time hour =20×1/60=1/3D =15kms=d/t=15/1/3=45km/h time=20×60=1200sd=15×1000=15000ms=d/t=15000/1200=12.5m/s



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