Physics question?

Question

When an athlete holds a barbell overhead, the
reaction force is the weight of the barbell on
his hand.
How does this force vary for the case where
the barbell is decelerated upward?
1. The force exerted by the athlete is equal
to the weight of the barbell.
2. The force exerted by the athlete is smaller
than the weight of the barbell.
3. It depends on the will of the athlete.
4. The force exerted by the athlete is greater
than the weight of the barbell

Answer 1

4. Greater since it must have a net force to create the upward acceleration
F-m*g=m*a

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