Answer:
17,753.24 J (Joules)
Step-by-step explanation:
To calculate the kinetic energy of an object, we use the formula:
Kinetic energy = 1/2 * mass * velocity^2
where mass is measured in kilograms and velocity is measured in meters per second.
Given that the boat has a mass of 1,678 kilograms and a velocity of 4.6 meters per second, we can substitute these values into the formula to find its kinetic energy:
Kinetic energy = 1/2 * 1,678 * (4.6)^2
Kinetic energy = 1/2 * 1,678 * 21.16
Kinetic energy = 17,753.24 J (Joules)
So the kinetic energy of the 1,678-kilogram boat moving at 4.6 m/s is 17,753.24 J (Joules).