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Physics, 08.04.2020 17:34 patriciaceaser2980

Which force best represents Fg?

A weight lifter is pushing a barbell upward with a force of 90 N.
The weight of a barbell acting on a weight lifter is 80 N.
The amount of upward force of a table on a box is 25 N.
A box on a rough table has difficulty sliding past 25 N of force.

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Which force best represents Fg?

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