Please rank the following objects by the magnitude of the normal force acting on them.  1.    A 80 g gecko crawling up the wall  2.    A 60 g caterpillar crawling up a 45 degrees incline  3.    A 35 g beetle crawling on the floor  Please rank correctly.

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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!