The drawing shows a person (weight, W= 584 N) doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assuming that the person holds this position. 0.840 m 0.410 m F one hand = F one foot

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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!