- #1
Aliasa
- 16
- 1
Homework Statement
The problem is with part b(ii). This is an A level question so only elementary concepts are to be used.
Homework Equations
$$E = \frac{1}{2}kx^2 $$
The Attempt at a Solution
EPE should be max at 0, 0.4, 0.8 since E is a function of $x^2$. However, mark scheme only accepts 0 and 0.8 only. It is my understanding that energy profile of a spring is symmetric under compression and expansion, but if so, why is 0.4 not acceptable?