# An object with a mass of 8 quad "kg" is hanging from a spring with a constant of 9 quad "kg/s"^2. If the spring is stretched by 13 quad "m", what is the net force on the object?

${F}_{\text{net}} = m \cdot a$
In this case, $a = 0$. Hence, ${F}_{\text{net}} = 0$.