Question

a bicycle wheel is 1m 26cm in diameter. calculate the number of rotation of the wheel needed to cover 1.98 km​

Answer 1

Answer:

500 revolutions are needed to cover 1.98 km.

Answer 2

Answer:

500

Step-by-step explanation:

Diameter = 1m 26 cm = 1.26m

Radius = 1.26/2 = 0.63 m

Perimeter of wheel = 2πr

= 2 x 22/7 x 0.63 = 3.96 m

1.98km = 1980 m

Revolutions needed to cover 1.98km

= 1980/3.96

= 500

500 revolutions are needed to cover 1.98 km.

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