An object has a mass of 10 kg and is moving with a velocity of 5 m/s. What is its kinetic energy?
Correct: C
Kinetic energy (KE) is calculated as KE = 1/2 * mv², where m is mass and v is velocity. Therefore, KE = 1/2 * 10 kg * (5 m/s)² = 1/2 * 10 kg * 25 m²/s² = 125 J.