The gravitational potential energy of a bird of mass 2.0 kg on a tree branch of height 15 m is most nearly:options:30 J3000 J300 J 15 J3.0 J

Respuesta :

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