Question

Find the number of revolutions made by a wheel in traveling a distance of 0.44 km. If its radius is 56cm.

Answer 1

$\huge\orange{answer}$

Radius of a wheel = 56 cm

Total distance covered = 0.44 km

= 44000 cm

Perimeter of circle = 2πr

Total distance travelled by wheel in one revolution =

$=2 \times \frac{22}{7} \times 56 \\ = 352 \: cm$

$No. \: of \: revolution \: in \: 44000 \: cm \: is = \frac{44000}{352} \\ = 125 \: cm$