Question

plz help me . question 2​

Answer 1

$\Huge\purple{Answer :-}$

$<b>$

Given, Number of revolutions = 140 per minute.

==> Therefore, Number of revolutions in 2 hours = 140 * 120

Moreover, Diameter = 60cm

==> Radius = 30cm

Therefore, Circumference = 2 ∏ r

==> 2 * 22/7 * 30

Now, Number of revolutions = Total Distance / Circumference

==> 140 * 120 = Distance / 2 * 22/7 * 30

==> 140 * 120 * 2 * 22/7 * 30 = Distance

==> Distance = 316800cm

==> Distance = 3.168 km

$\bold\pink{Distance = 3.168km}$