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Answer:
Gravity.” or “Gravity causes the moon to orbit the earth.” “Acceleration due to gravity” is much more precise. It is the acceleration that an object experiences when it is dropped with no other external forces on it. ... Near the surface of the earth the acceleration due to gravity is about 9.8
Explanation:
Below is an attachment containing the solution.
Part A: a->positive when velocity is increasing a->negative when velocity is decreasing a->zero when velocity is constant
