Question

Calculate the amount of extension of a spring with a spring constant of 1 kn/m, if the amount of work done in extending it is 50 j. give your answer in m

Answer 1

W = 1/2 k x^2 work done in extending a distance x

x = (2 W / k)^1/2 = (2 * 50 N / 50 kn / m)^1/2

x = (.1 kn / 50 kn/m)^1/2 = .045 m