physics question

Question

how much force is required to pull a string 12 cm from equilibrium if the spring constant is 10.8x10^3N/m?

Answer 1

F_spring =Kx Where K is the spring constant, and x is how far the spring is from equilibrium

F_spring = (10.8 x 10³) (0.12) Make sure you convert 12 cm to meters

F_spring = 1.3 x 10³ N Don't forget units and follow sigfig if needed

Answer 2

F = k Δx

= 10800 x .12 = 1,296 N