# Any idea on latitude question?

tubworld
I have this problem here.
Let's say: A plumb bob does not hang exactly along a line directed to the center of the Earth's rotation. How much does the plumb bob deviate from a radial line at 40 degrees north latitude if we assume that the earth is spherical?

Staff Emeritus
F = m$\omega^2$r, where r is the distance from the earth's axis to the plumb bob.