To calculate the kinetic energy of a car, you need to use the formula:
Kinetic Energy = (1/2) * mass * velocity^2
Given: Mass of the car = 1200 kg Velocity = 30 m/s
Substituting the values into the formula:
Kinetic Energy = (1/2) * 1200 kg * (30 m/s)^2
Kinetic Energy = (1/2) * 1200 kg * 900 m^2/s^2
Kinetic Energy = 540,000 Joules
Therefore, the kinetic energy of the car weighing 1200 kg traveling at a speed of 30 m/s is 540,000 Joules.