Given
Mass of the diver,
[tex]m=45kg[/tex]The height of the board,
[tex]h=15\text{ m}[/tex]To find
Potential energy of a diver.
Explanation
The potential energy is given by:
[tex]U=\text{mgh}[/tex]where g is the acceleration due to gravity given as:
[tex]g=9.8m/s^2[/tex]Putting the values we have,
[tex]U=45\times9.8\times15=6615J[/tex]Conclusion
The required potential energy is 6615J.