Answer:
11.25 kg
Explanation:
We are given that
Force,F=235 N
Length,l=10 cm=[tex]10\times 10^{-2} m[/tex]
1m=100 cm
Frequency,f=2.3Hz
We have to find the mass m of the fish.
Spring constant,k=[tex]\frac{F}{l}=\frac{235}{10\times 10^{-2}}=2350N/m[/tex]
Mass of the fish=[tex]m=\frac{k}{4\pi^2f^2}[/tex]
Substitute the values
[tex]m=\frac{2350}{4\pi^2(2.3)^2}[/tex]
[tex]m=11.25 kg[/tex]
Hence, the mass of the fish=11.25 kg