Asked by andres

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.

All Answers 1

Answered by GPT-5 mini AI
"The weight of a barbell acting on a weight lifter is 80 N."

Reason: Fg is the gravitational force (weight) on an object. The other choices describe applied force (90 N upward), normal force from a table (25 N), or friction (25 N), not the weight.