Question

if a wheel Revolves 500 times in 1 km find it's diameter​

Answer 1

Answer:

bicycle wheel makes 500 revolutions in moving 1 km.

In 1 revolution, the bicycle wheel covers

= 1/500 km = 1000/500 m = 2m

1 revolution distance = circumference of the wheel

$2\pi = 2$

⇒ 2×22/7×r =2

$r = \frac{2 \times 7}{22 \times 2}$

$\frac{7}{22}$

Therefore, diameter (d) = 2r = 2×7/22 = 7/11 = 0.636 m.