Question

Leave the variation constant in fraction form. Round off your final answer to the nearest in.

Answer 1

`\begin{gathered} Let´s\text{ call} \\ x=stretch\text{ing} \\ W=weight \\ K=\text{ constant} \\ x=K\cdot W \\ \text{For} \\ x=3in \\ W=17lb \\ \text{Solving K} \\ x=K\cdot W \\ K=(x)/(W) \\ K=(3)/(17),\text{ the va}riation\text{ constant is }(3)/(17) \\ \text{Then},\text{ for} \\ W=45lb \\ x=(\text{ }(3)/(17))(45) \\ x=7.94\approx8in \\ Th\text{e spring strerches 8in when the weigth is 45lb} \end{gathered}`