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In which situations is work being done?
(I put the choices below, also I need more than one answer)
1. Hannah leans against her locker, but it doesn't move
2. Andy's car rolls down a hill with the engine off
3. A wind turbine stands still on a sunny, windless day
4. A balloon expands as its heated by the sun
5. James pedals a stationary exercise cycle that doesn't move

Respuesta :

remykid

Answer:

2 Andy's car rolls down a hill with the engine off

Explanation:

work is said to be done whenever a force moves a body a distance in the direction of the force note stationary object don't move so no distance is covered.

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