6. Consider the following 4 scenarios of an object (same mass in each case) and rank them from greatest to least according to the magnitude of the force acting on them. If there is no force, state so explicitly. Explain your ranking. T=4s T=2s T-Os

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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!