A spring has a spring constant k = 0.410 N/m. It is stretched 0.200 m from its equilibrium position.Give the formula for the restoring force of the...

A spring has a spring constant k = 0.410 N/m. It is stretched 0.200 m from its equilibrium position.Give the formula for the restoring force of the spring. (Do not substitute numerical values; use variables only. Use the following as necessary: the spring constant k and the spring's displacement Δx.)

|Fel| = 

Calculate the restoring force (in N) of the spring. (Enter your answer to at least three significant figures.)

|Fel| =  N