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In which situation is no work being done?
A. a person carrying a box from one place to another
B. a person picking up a box from the ground
C. a person pushing a box from one place to another
D. a person pulling a box from one place to another​

Respuesta :

jcherry99

Answer:

Explanation:

A: as long as the height does not change, there is no work being done going from 1 place to the next.

B: Here's where the work is being done for A. You lift the box from ground level to the height where it settles.

C: If there is friction involved (and it sounds like there is) then there is work being done against the friction.

D: same explanation as C.

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