# Solve the following :

Question:

A body builder exerts a force of $150 \mathrm{~N}$ against a bullworker and compresses it by $20 \mathrm{~cm}$. Calculate the spring constant of the spring in the bullworker.

Solution:

Net Force

$F=k x$

$150=k \times 0.2$

$\mathrm{k}=750 \mathrm{~N} / \mathrm{m}$