1.

in 1666, Newton concluded that the force which caused an apple to fall to the ground and the force that kept the moon in its orbit around the earth is the ?

A. "Weight called as ""Weightlessness"""
B. "Acceleration called as ""Centripetal acceleration""."
C. "Universal force called as ""Artificial Gravity""."
D. "Universal force called as ""Gravitation""."
Answer» E.


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