Answer:
107,550 J
Step-by-step explanation:
Kinetic energy = 1/2 * mass * velocity^2
In this case, the mass of the object is given as 478 kg and the speed is given as 15 m/s.
Plugging these values into the formula, we get:
Kinetic energy = 1/2 * 478 kg * (15 m/s)^2
Simplifying the equation, we have:
Kinetic energy = 1/2 * 478 kg * 225 m^2/s^2
Multiplying the numbers together, we get:
Kinetic energy = 107,550 kg*m^2/s^2
Simplifying further, we can express the unit of kinetic energy as joules (J):
Kinetic energy = 107,550 J