Which of the following confirms that gravitational mass and inertial mass are equivalent?

A. Free-fall acceleration is the same throughout the universe.
B. Free-fall acceleration is the same at all points where the gravitational field strength is the same.

C. Newton’s second law is valid throughout the universe.
D. An object’s weight can change with location, but the object’s mass remains constant.

Question

Which of the following confirms that gravitational mass and inertial mass are equivalent?  

A. Free-fall acceleration is the same throughout the universe.
B. Free-fall acceleration is the same at all points where the gravitational field strength is the same.

C. Newton’s second law is valid throughout the universe.
D. An object’s weight can change with location, but the object’s mass remains constant.

anonymous · Answer

C.

We can use F = ma to show that F, due to force of gravity, really is mass time the acceleration due to gravity, and we can use the same equation in other situations as well, as in perform experiments to prove F =ma is valid.