Answer :
To calculate the potential energy of an object, we can use the formula for gravitational potential energy:
[tex]PE = m \cdot g \cdot h[/tex]
Where:
- [tex]PE[/tex] is the potential energy in joules (J).
- [tex]m[/tex] is the mass of the object in kilograms (kg).
- [tex]g[/tex] is the acceleration due to gravity, which is approximately [tex]9.8 \ m/s^2[/tex] on the surface of the Earth.
- [tex]h[/tex] is the height above the ground in meters (m).
Given:
- Mass [tex]m = 5.0 \ kg[/tex]
- Height [tex]h = 3 \ m[/tex]
Substituting the values into the formula:
[tex]PE = 5.0 \ kg \times 9.8 \ m/s^2 \times 3 \ m[/tex]
[tex]PE = 147 \ J[/tex]
Therefore, the potential energy of a 5.0 kg object located 3 meters above the ground is [tex]147 \ J[/tex].
The correct option is A) 147 J.
