In which of the following cases is no work done? a. A weightlifter lifts a barbell. b. A weightlifter holds a barbell overhead. c. A weightlifter slowly lowers a barbell. d. A weightlifter drops a barbell

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asked Apr 11, 2024 72.4k views

4 votes

In which of the following cases is no work done?

a. A weightlifter lifts a barbell.
b. A weightlifter holds a barbell overhead.
c. A weightlifter slowly lowers a barbell.
d. A weightlifter drops a barbell and the barbell falls to the ground.

Physics
high-school

Roostergx asked

by Roostergx

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1 Answer

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Answer:

Step-by-step explanation:

The weightlifter Is only using his energy carrying it but there is no movement

Xtra answered Apr 16, 2024

by Xtra

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