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Physical Science
Pretest
Question 5
5
lesson pretest
Multiple Choice
Pretest
Question 5 • Physical Science
Pablo prepares to lift a barbell. During which stage of the lift does Pablo do work on the barbell?
Answer
A
when he holds the barbell up above his head
B
when he applies force to the barbell but has not moved it
C
when he lifts the barbell from the floor to his chest
D
when he lets go of the barbell and allows it fall to the ground
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