1.

A wheel has radius 42 cm.(a) Find the distance covered in 700 revolutions(b) In how many revolutions will it cover a distance of 3 km 960 m?

Answer»

Circumference will be the distance covered in one revolutionHence2πr=2*22/7*42=264cm^2a)Hence in 700 revolutions=700*264=184800cm^2Now 3km 960m=3000m+960m=3960mHence,Revolutions will be 3960/264=15revolutions



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