Question

find the number of revolution taken by the wheel of a truck to cover a distance of 78.5 km if the diameter of wheel is 1m. π=(3.14)

Answer 1

hello frnd!!

here's ur answer...

given:-

diameter=1m

therefore radius=0.5m

circumference=2πr

=2×3.14×0.5

=3.14m

we know that 1km=1000m

therefore 78.5km=78500m

hence, no. of revolution=78500/3.14

=25000

hence, final answer is 25000 revolution.

hope this helps...