A cone is in unstable equilibrium, has its potential energy
A
decreased
B
increased
C
unchanged
D
oscillating
Verified Correct Answer: B.
Physical Principles & Numerical Solution
In unstable equilibrium, when the cone is disturbed, it tends to fall further from its equilibrium position, leading to a decrease in height and thus an increase in potential energy.
Source: Myschool Past Questions Archive (Record #55826)