The discussion centers on the relationship between running speed and weight at the equator, emphasizing that gravitational acceleration is approximately 9.78 m/s² at the equator and 9.83 m/s² at the poles. Participants clarify that while gravitational force is nearly equal at both locations, the apparent weight is about 0.5% less at the equator due to the Earth's shape and rotation. The key takeaway is that the net force acting on a person running at the equator is influenced by these factors, and understanding this can help determine how to maximize weight perception while running.
PREREQUISITESStudents studying physics, educators teaching gravitational concepts, and anyone interested in the effects of Earth's rotation on weight perception.
Johny158 said:ravitational acceleration is 9.78 m/s2 at the equator and 9.83 m/s2 at the poles, so you weigh about 0.5% more at the poles than at the equator.
Well, it is about 0.2% less at the equator, but as you say the apparent gravitational force (the ratio between weight and mass) is about 0.5% less.CWatters said:Gravitational force is actually about the same at the equator and the poles.