The diameter of circle is 98cm. How many times will it rotate to cover 7.7km. Distance covered by wheel in 1000 revolution
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Diameter= 98cm
Distance= 7.7km
So, no. of rotations-
Circumference= 2πr , radius- D/2= 98/2= 49
= 2×22/7×49= 308
Thus, No. of rotations = Distance/Diameter
= 7.7km in m- 7700 = 7700/308= 25rotations
Distance covered by the wheel in 1000 revolutions—
= Revolutions × Circumference
= 1000×308
= 308000m
=308km.
THANKS
Distance= 7.7km
So, no. of rotations-
Circumference= 2πr , radius- D/2= 98/2= 49
= 2×22/7×49= 308
Thus, No. of rotations = Distance/Diameter
= 7.7km in m- 7700 = 7700/308= 25rotations
Distance covered by the wheel in 1000 revolutions—
= Revolutions × Circumference
= 1000×308
= 308000m
=308km.
THANKS
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