Question

Question 6
In covering a distance s m , a circular wheel of radius r m makes $\frac{s}{2\pi r}$ revolution. Is this statement true ? why?

Answer 1

The given statement is true.
Proof: Radius of the wheel = r
Distance to be covered = s
Circumference of the wheel = $2\pi r$
$\Rightarrow$ The distance covered in one revolution is $2\pi r$.
$\Rightarrow$ Number of revolutions made for covering distance, s
= $\frac{Totaldistancetobecovered}{Distncecoveredinonerevolution}$
= $\frac{s}{2\pi r}$