Given:
The mass of the bird is m = 2 kg
The height of the tree is h = 15 m
To find the gravitational potential energy.
Explanation:
The potential energy can be calculated by the formula
[tex]P.E.\text{ =mgh}[/tex]Here, the acceleration due to gravity is g = 10 m/s^2
On substituting the values, the potential energy will be
[tex]\begin{gathered} P.E.\text{ = 2}\times10\times15 \\ =\text{ 300 J} \end{gathered}[/tex]Thus, the gravitational potential energy of the bird is 300 J