Question

A wheel of a cart is making 4 revolution per second. If the diameter of the wheel is 84 cm , find the speed of the wheel in cm/sec.

Answer 1

Diameter of the wheel is 84 cm
so circumference of the wheel
=π×diameter
=22/7×84cm=22×12cm=264cm
distance covered in one revolution=
circumference of the wheel.
In 1 sec there are 4 revolutions
so distance covered in 1sec=
4×264cm=1056cm
so speed of the wheel is 1056cm/sec

Answer 2

Answer:

Step-by-step explanation:

Diameter of the wheel is 84 cm

so circumference of the wheel

=π×diameter

=22/7×84cm=22×12cm=264cm

distance covered in one revolution=

circumference of the wheel.

In 1 sec there are 4 revolutions

so distance covered in 1sec=

4×264cm=1056cm

so speed of the wheel is 1056cm/