Question

A body builder exerts a force of 150 N against a bullworker and compresses it by 20 cm. Calculate the spring constant of the spring in the bullworker.

Answer 1

Force exerted by the body builder against the bullworker = 150 N
Compression in the bullworker, x = 20 cm = 0.2 m

∴ Total force exerted, f = kx = 150
Here, k is the spring constant of the spring in the bullworker.

\[\therefore k = \frac{150}{0 . 2} = \frac{1500}{2} = 750 \text{ N } /\text{ m } \]

Hence, the spring constant of the spring in the bullworker is 750 N/m.