1. The problem statement, all variables and given/known data b) A person standing on the edge of a 100 m high cliff drops a 0.5 kg stone vertically downwards. Determine the final velocity of the stone after falling 100m, and its kinetic energy. 2. Relevant equations Final velocity v = √(2gx) 3. The attempt at a solution final velocity v = √(2gx) v = √(2(0.5x9.8)100) v= 31.3m/s is that correct? how do i calculate the kinetic energy?