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Answer to Question #77984 in Classical Mechanics for Charvi
Question #77984
When a balloon sticks to a wall due electrostatic forces between it and the wall why does not it fall down due to weight
As the two electrostatic forces are equal and opposite and net force on balloon is towards wall then how balloon is held on wall
As the two electrostatic forces are equal and opposite and net force on balloon is towards wall then how balloon is held on wall
Expert's answer
The net force on balloon is not towards wall it is directed opposite to the resultant of two forces: weight of the balloon and normal force on the balloon by the wall. The balloon is not a mathematical point and charges on them can be distributed in such way that net electrostatic force is directed at some angle to the wall.
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Comments
yes
So the net force of electrostatic forces is in upward direction which balances the weight of balloon
obviously, weight of balloon is balanced by electrostatic force.
But how the weight of balloon has been balanced or by which force it has been balanced
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