(a) Calculate the gravitational potential energy of the diver, relative to the height of the water. Assume the gravitational field constant is 9.8 N /kg

The gravitational potential energy of an object is given by the equation P.E. = mgh, where m is the mass of the object, g is the gravitational field constant, and h is the height.

In this scenario, the mass of the diver is not given. Therefore, we cannot calculate the gravitational potential energy.