Ans; see attached file for calculation and answer
Explanation:
Elastic potential energy is equal to the force times the distance of movement. Elastic potential energy = force x distance of displacement. Because the force is = spring constant x displacement, then the Elastic potential energy = spring constant x displacement squared.
Answer: B = 1380T
Explanation: please find the attached file for the solution
By raising a position of an object, Its potential energy increases.