a wheel has a diameter 42 cm how many revolutions will it take to cover a distance of 26.4m
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2
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Diameter of the wheel=12cm
Circumference of the wheel=2πr
=2π⋅
2
12
=12π
=12×
7
22
=
7
264
cm.
∴ Distance covered in 1 revolution=
7
264
cm
∴ No. of revolutions to cover a distance of 26.4m
=
7
264cm
26.4m
=
7
264
cm
2640cm
=
264
2640×7
=70 revolutions.
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