- Dec 10, 2003
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So, I will take that as a "Yes"... that you cannot come up with anything that proves the earth to be a globe..
- Change in stars with latitude
- Objects being hidden by the curve of the earth
- Measured distances (and aircraft flight times) between cities
- Need I go on?
1. Gravity is the "force" that attracts a body to the center of the earth, or ANY other physical body having mass.
2. This means that anything with mass has a gravitational force.
3. Gravity pulls falling objects to the ground.
4. It applies to objects of all sizes, stating that the more mass an object had, the more it attracted other objects.
As a result of gravity working this way, the gravitational force at the earth's surface on an object of mass m is:
F = 6.67408×10^-11 M m / r^2 = 9.8 m
where M is the mass of the earth, and r its radius.
Force = mass times acceleration, so:
F = m a = 9.8 m
Therefore a = 9.8. That is, ignoring air resistance, all falling objects close to the earth's surface accelerate at 9.8 metres per second per second, no matter how heavy they are.
Well, according to cosmological physics, it's "measuring the rate of things falling towards the ground". Did I get it right?
I think you've got force, acceleration, and speed confused. They are three different things.
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