Answer:
The potential energy for a mass on a spring is proportional to the square of the displacement.
D is correct.
Step-by-step explanation:
The Potential energy :
The potential energy is the stored energy within the object due to the position of the object.
For spring,
The potential energy is the directly proportional to the square of displacement.
The potential energy in the string is defined as,
![P.E = (1)/(2)kx^2](https://img.qammunity.org/2020/formulas/physics/high-school/3n4chnxf89ksumtg2ss0l2d2dkcjbu0yai.png)
Where, k = spring constant
x = distance
Hence, The potential energy for spring is proportional to the square of the displacement.