- #1
primarygun
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Work Done Sorry, Still have some Qs
Work done refers to a force x distance.
Or a force (continuous) x distance?
I think it is the second one when I think of the potential energy, right?
For PE=mgh,
How to prove it? And when an object falls, it loses potential energy, why?
Where is the negative sign?
Work done refers to a force x distance.
Or a force (continuous) x distance?
I think it is the second one when I think of the potential energy, right?
For PE=mgh,
How to prove it? And when an object falls, it loses potential energy, why?
Where is the negative sign?
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