The diagram above represents balls in an undulating surface. Which of the following option represents positions of stable equilibrium?
Attached Figure / Diagram
A
III, IV and VIII
B
II, V and VIII
C
III, VI and IX
D
I, IV and VII
Verified Correct Answer: C.
Physical Principles & Numerical Solution
A bod y is said to be in stable equilibrium if after a slight displacement, the body returns to its former position. Thus, position III, VI and XI represents position of stable equilibrium
Source: WAEC / JAMB / NECO Classroom Archive (Record #14507)