In Newton’s Third Law, the action and reaction forces   Question 10 options:   A)  are only equal if the object is moving with constant velocity.   B)  act on the same object.   C)  act on different objects.   D)  are only equal if the object is stationary.

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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!