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Describe what happens when you try to push a heavy box (> 200lbs) that has been...

Describe what happens when you try to push a heavy box (> 200lbs) that has been sitting on the floor for some time a) before it starts to move b) right after it starts to move c) if it acquired an acceleration without you pushing it harder, explain why in details using static and kinetic forces of frictions and 2nd Newton

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