A 12.5 cm tall soft drink can has a mass of 16.9 g and contains 364 g of soda when full. Assuming the can is symmetric, its center of mass is obviously 6.25 cm above its base when full and when empty. (a) Where is its center of mass (in cm) when half full? cm above the base (b) Where is its center of mass (in cm) when one-tenth full? cm above the base

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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!