Question

Wheel of a bus is 1 meter diameter and rotating at 540 rpm. The speed of the bus is

Answer 1

Diameter of wheel: 1m

Radius (r) of wheel: 1/2m

Circumference of wheel: 2πr

$2 \times \frac{22}{7} \times \frac{1}{2}$

$\frac{22}{7} m$

Rounds taking per minute: 540

Distance covered in one minute:

$540 \times \frac{22}{7}$

$1697.14m$

Now,

$speed = \frac{distance}{time}$

$\frac{1697.14}{60}$

because 1 minute = 60 seconds

Hence,

speed of bus is ....

$28.28 m{s}^{ - 1}$