Question

The diameter of a wheel is 98cm. In how many revolutions will it cover a distance of 1540m?​

Answer 1

This is because , Repulsion takes place only between two likes poles of a magnet whereas attraction takes place between two unlike poles of a magnet and also between a magnet and a magnetic material . So by attraction it cannot be surely identified the substance is a magnet or not .

Answer 2

$\huge\mathfrak\red{Answer}$

Given :-

➽Diameter = 98cm

Find:-

➽Radius of the wheel

➽Circumference of the wheel

Solution :-

We know that,

★Radius = Diameter(d)/2

⇛98cm/2

⇛49cm

★Circumference of wheel = 2πr

⇛2×22/7×49

⇛308cm

★Number of revolutions =

⇛1540×100/308cm

⇛500

Hence, In 500 revolutions wheel will cover a distance of 1540m.