PLZ HURRY A 751 drivers drops from a board 9.10 m above the waters surface How much kinetic energy does the diver have when he is 2.50 m above the water

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2. a. 9.5 m b. 11.9 m c. 15.2 m d. 23.8 m