A cyclist and their bicycle have a combined mass of 80 kg. At the bottom of a hill, the cyclist is travelling at a speed of 12 m/s.
Calculate the kinetic energy of the cyclist and bicycle at the bottom of the hill.
Use the equation:
kinetic energy=0.5×mass×speed2 \text{kinetic energy} = 0.5 \times \text{mass} \times \text{speed}^2 kinetic energy=0.5×mass×speed2