Social Studies, 16.11.2020 18:10 Zshotgun33

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? A weight lifter is pushing a barbell upward with a force of 90 N.