Answer: 252 Joulesidentifying the given:m (mass) = 56 kilogramsv (velocity) = 3 m/sworking equation:Formula for computing kinetic energy: (1/2)mv²solve (substitute given):(1/2)(56 kg)(3 m/s)² = 252 Joules(try inputting this in a scientific calculator)*Joules is the unit of energy