Suppose three identical steel balls Q, R, and S, are placed on an undulating ground...
PHYSICS
WAEC 2022
Suppose three identical steel balls Q, R, and S, are placed on an undulating ground as illustrated in the diagram below. Which of the balls is/are in neutral equilibrium?
- A. S only
- B. Q only
- C. R only
- D. Q and S only
Correct Answer: A. S only
Explanation
A system is in neutral equilibrium if its equilibrium is independent of displacements from its original position. A marble S on a flat horizontal surface is an example.
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