I am trying to construct the free body diagram of a mass suspended by two vertical springs such
I concluded that the weight of the mass exerts a force on the upper spring causing a tension force to arise in the upper spring, and the weight of the mass exerts a force on the lower spring causing it to compress producing a thrust force.
Hence my diagram is as shown
However the textbook I am using instead shows the forces exerted by the springs acting in opposite directions,
I do not understand, why would the lower spring exert a tension force instead of a thrust force?