The 50 kg roller coaster at position 1 is at a height of 20 m, 10 m at position 2 and 1 m at position 3. If the kinetic energy at position 1 is 0 J with a velocity of 0 m/s, identify the total energies at each position below (assume that mechanical energy is conserved):
Position 1: Potential EnergyTotal Mechanical Energy
Position 2: Potential Energy Kinetic Energy Velocity Total Mechanical Energy
Position 3: Potential Energy Kinetic Energy Velocity- Total Mechanical Energy