A 2.0 kg grapefruit is tossed at a speed of 5.0 m/s from a roof that is 6.0 m above the ground. To determine the kinetic energy of the grapefruit after it has fallen 2.0 m from its release point: Question 12 options: a) None of these options will give you the kinetic energy of the grapefruit after it has fallen 2.0 m. b) calculate the difference between the gravitational potential energy at the top and the 2.0 m mark. c) calculate the difference between the total energy at the top minus the gravitational potential energy at the 2.0 m mark. d) calculate the total energy at the top and add it to the gravitational potential energy at the 2.0 m mark. e) calculate the kinetic energy at the top and double it