Question

A dog runs at 6 kmph for 3hrs and 9 kmph for 2 hrs what is thr average speed

Answer 1

Average speed if total distance/ total time
= 6+9/3+2 km/h
= 15/5 km/h
= 3 km/h
= 3÷1000/60×60 m/s
= 0.833333 m/s


I hope my answer will help u

Answer 2

total distance covered in first 3 hrs = 6*3=18
distance covered in next 2hrs = 9*2= 18 km
thus total distance covered in 5hrs = 18+18=36km
thus av speed = 36/5=7.2km/hrs = 7200/3600m/s = 2m/s

Hope this will help you

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