Question

If a 0.6kg object hanging from a spring stretches it by 0.15 m, then by how much will the spring be stretched(in m) if a 1.2 kg object is suspended from it?

Answer 1

F = m g = - K x

One can tell from the problem that .15 * 2 =.30 m

Or F2 / F1 = x2 / x1

x2 = 1.2 / .6 * .15 m = .3 m