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Says that a uniform gravitational field is the same as constant acceleration
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If you are in a room with no windows, there is no way for you to tell that you were on earth and subject to gravitational field as opposed to hypothesis that you were far from any field but accelerating at 9.8 meters/sec2
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| 2 |
Alternatively, Equivalence Principle says that the gravitational mass (the mass m1 that appears in Newton's law of gravity)
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| 3 |
is equal to inertial mass m1 appearing in Newton's law of motion
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| 4 |
In general relativity, the Equivalence Principle is built in
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