16 - The force of gravity on Moon is 17 % of the force of gravity on Earth. T/I A (a) Calculate the acceleration due to gravity on Moon. (b) How much would an object that has a mass of 40 kg weigh in Newtons, on Moon? (c) A rock falls, experiencing a force of gravity of 4900 N on Earth. How much force would it  experience on Moon?

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!