If a lift is falling freely with "g", the person inside will be experiencing or feeling
No force, and he becomes weightless, means force of gravity is constantly acting and producing "g", but the body on which it is acting saying no force,
Question is
Does such type of behavior exist for other type of forces (e, g magnetic and electromagnetic ) ??? if no
Then all the forces having same unit, same symbol, then how can we explain this different behavior of gravitational force ??
It’s the consequence of the property that the mass that appears in Newton’s second law of motion is equal to the mass that appears in Newton’s law of gravitation. In Newtonian mechanics this is an additional assumption. But it can be shown that this property is, in fact, a consesuence of the non-relativistic limit of general relativity, that expresses the fact that it’s the energy-momentum tensor of matter that couples to the metric.
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