Asked by julie

Which of the following is not an example of work?

A.
raising a barbell over your head

B.
picking up a box off the floor

C.
holding a tray in the cafeteria line

D.
pushing a box across the floor


I think its C.
Answered by Damon
Force times distance in direction of force

If not moving in cafeteria line - no work
If moving forward in line and weight of tray is down, force not in direction of motion --> NO WORK
Answered by Damon
So yes, C
Answered by julie
Ty :)
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