The velocity of the speedboat is 4.04 m/s
Explanation:
The kinetic energy of an object is the energy possessed by an object due to its motion.
The formula to calculate kinetic energy is:
[tex]K=\frac{1}{2}mv^2[/tex]
where
m is the mass of the object
v is its velocity
For the speed boat in this problem, we know:
K = 980 J is its kinetic energy
m = 120 kg is its mass
So we can re-arrange the equation to find its velocity:
[tex]v=\sqrt{\frac{2K}{m}}=\sqrt{\frac{2(980)}{120}}=4.04 m/s[/tex]
Learn more about kinetic energy:
brainly.com/question/6536722
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