How do I solve this question on Hooke's law?

Question

A particle of mass $2$ kg is being held in equilibrium on a smooth slope by a horizontal force $p$ and a light elastic spring. The spring has modulus of elasticity $10$N and is attached to the particle and also to the slope $1.5$m up the slope from the particle and also to the slope is inclined at $25°$ and the force $p$ is of magnitude $5$N find the two possible natural lengths of the spring.

Answer 1

It may be helpful to draw a free body diagram, annoted with all the relevant angles. There are $4$ forces involved:

1. The normal reaction force from the slope
2. Tension or thrust in the spring (depending on whether's it's stretched or compressed)
3. The particle's weight
4. The horizontal force $p$.

Does that help? Please tell me if you require any more help.