In covering a distance s metres, a circular wheel of radius r metres m

1.	In covering a distance s metres, a circular wheel of radius r metres makes s/2πr revolutions. Is this statement true? Why?
Answer» True Explanation: The distance travelled by a circular wheel of radius r m in one revolution is equal to the circumference of the circle = 2πr No. of revolutions completed in 2πr m distance = 1 No. of revolutions completed in 1 m distance = (1/2πr) No. of revolutions completed in s m distance = (1/2πr) × s = s/2πr Thus, the statement “in covering a distance s metres, a circular wheel of radius r metres makes s/2πr revolutions” is true.

In covering a distance s metres, a circular wheel of radius r metres makes s/2πr revolutions. Is this statement true? Why?

Answer»

True

Explanation:

The distance travelled by a circular wheel of radius r m in one revolution is equal to the circumference of the circle = 2πr

No. of revolutions completed in 2πr m distance = 1

No. of revolutions completed in 1 m distance = (1/2πr)

No. of revolutions completed in s m distance = (1/2πr) × s = s/2πr

Thus, the statement “in covering a distance s metres, a circular wheel of radius r metres makes s/2πr revolutions” is true.