the distance between the school and house of a boy is 3.6km.if he tkes 6min to reach his school by car,calculate his speed in m/s .also express his speed in km/hr
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Answered by
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10 metre per second or 36 km per hr..
Answered by
5
speed=3.6/6/60=3.6*60/6=36 km/hr
36 km/hr=36*5/18 m/s=10 m/s
36 km/hr=36*5/18 m/s=10 m/s
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6min=360 secs
so, speed is 3600/360 which is equal to 10 metre /sec
and now multiply 10m/s by 18/5 to convert it into km/h
which is= 36 km/h