Answer: 2352 J
Explanation:
A body's gravitational potential energy [tex]U[/tex] depends on its position and is mathematically expressed as follows:
[tex]U=mgh[/tex]
Where:
[tex]m=60 kg[/tex] is the mass of the skater
[tex]g=9.8 m/s^{2}[/tex] is the acceleration due gravity
[tex]h=4 m[/tex] is the skater's current height
Solving:
[tex]U=(60 kg)(9.8 m/s^{2})(4 m)[/tex]
[tex]U=2352 J[/tex]