Question

The angular velocity of the earth with which it has to rotate so that the acceleration due to gravity on `60^@` latitude becomes zero is
A. `2.5xx10^(-3) rads^(-1)`
B. `1.5xx10^(-3) rad s^(-1)`
C. `4.5xx10^(-3) rad s^(-1)`
D. `0.5xx10^(-3) rad s^(-1)`

Answer 1

Correct Answer - A
`g-Romega^(2)cos^(2)lambda=0`, given `lambda=60^(@)`, find `omega`