± The Fish Scale (mastering physics)?

A vertical scale on a spring balance reads from 0 to 220N . The scale has a length of 15.0cm from the 0 to 220N reading. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.45Hz .

Part A
Ignoring the mass of the spring, what is the mass m of the fish?
2 answers 2