[tex]\tt{\huge{\blue{Explanation:}}}[/tex]
The kinetic energy of a moving object is given by
[tex]\boxed{KE = \frac{1}{2}mv^{2}}[/tex]
where:
KE = kinetic energy
m = mass
v = speed
[tex]\tt{\huge{\red{Solution:}}}[/tex]
[tex]KE = \dfrac{1}{2}mv^{2}[/tex]
[tex]KE = \dfrac{1}{2}(\text{50 kg})(\text{4 m/s})^{2}[/tex]
[tex]\boxed{KE = \text{400 J}}[/tex]
Therefore, the kinetic energy of the fish is 400 J.
[tex]\\[/tex]
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