the effect of rotation of the earth on the value of acceleration due to gravity is
the effect of rotation of the earth on the value of acceleration due to gravity is
Answer: The rotation of the Earth does have a minor effect on the value of acceleration due to gravity, but this effect is relatively small and not typically noticeable in everyday situations.
As the Earth rotates, it is not a perfect sphere; it bulges slightly at the equator due to its rotation. This bulging causes the equatorial radius (distance from the Earth’s center to the equator) to be slightly larger than the polar radius (distance from the Earth’s center to the poles). This variation in the Earth’s shape leads to a slightly larger distance from the center of the Earth to a point on the equator compared to a point at the poles.
Because gravity weakens with distance from the center of the Earth, the slightly larger distance at the equator leads to a slightly weaker gravitational pull compared to the poles. Therefore, the acceleration due to gravity at the equator is slightly smaller than at the poles.
The difference in acceleration due to gravity between the equator and the poles is relatively small, approximately 0.5%. In everyday situations, this difference is not noticeable. However, it’s a factor that scientists and engineers account for when making very precise measurements or calculations involving gravitational forces.