Newton’s Apple – Science Short



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  1. The impulse from hammering the stick overcomes the static friction between the apple and the stick, driving the stick down relative to the apple. Kinetic friction brings the apple to a halt and static friction can take over again. As this happens, your hand has been moving the stick back up in time for you to hit it with the hammer again. So while the stick's net position is unchanged, the apple's has moved upward.

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