Question

The distance D that a spring is stretched by a hanging object varies directly as the weight W of the object. If a 23-kg object stretches a spring 46 cm, find the distance the spring is stretched when the weight is 6-kg.

Answer 1

Hooke's Law
F = kx
where F = force applied, k = spring constant, x = extension
Let's just say gravity = 10 ms^-2 for easyness

After you have found k, just use F = kx again where F = 6 x 10