Which of the following statements is true? MultipleChoice : 1) An object has the same weight on the Moon and the Earth. 2) Weight and mass have the same units. 3) Weight and mass are different names for the same quantity. 4) An object has the same mass on the Moon and the Earth. 5) Both weight and mass can be considered vector quantities.

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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!