Explain centrifugal force due to rotation of the earth

Explanation

Earth spins about its own axis with an angular velocity .Any object on the surface of Earth experiences a centrifugal force. The centrifugal force appears to act exactly in opposite direction from the axis of rotation .
Where r is perpendicular distance of the man from the axis of rotation . by using right angle triangle the distance
`r= R cos theta`
Here R = radius of teh Earth and `theta= ` latitude of the Earth where the man is standing