The wheel of a bus has a radius of 50 cm. How many revolutions of the wheel will it take to cover a distance of 3km
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Answer:
955 revolutions
Step-by-step explanation:
C = 2πr
= 2 × 3.14 × 50 = 314 cm
1 km = 1000 m & 1 m = 100 cm
∴ 3 km = 300000 cm
No. of revolutions = Distance ÷ circumference
= 300000 ÷ 314
= 955
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