A ball is placed in a trough as shown. This can be categorised as
A
Unstable Equilibrium
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B
Stable Equilibrium
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C
Neutral Equilibrium
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D
None of these
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Solution
The correct option is B
Stable Equilibrium
Try displacing the ball a little from its mean position. What will happen? Yes, the ball will try to come back. This is the case of stable equilibrium.