Two students are share how to calculate the kinetic and potential energy when the skateboard is halfway down the ramp. In the space below, explain which method is correct and why. Method A “The kinetic energy is half the skater’s original potential energy because they are halfway down the ramp.” Potential energy = mass • acceleration due to gravity • height Kinetic energy (halfway down) = potential energy/2 Method B “The kinetic energy is twice the skater’s original potential energy because they are halfway down the ramp.” Kinetic energy = ½ • velocity/2 Kinetic energy = 2 • (½ • mass • velocity)