Question

What kind of energy is possessed when a stone lying on the top of a roof.

Answer 1

Definition of potential energy:

1. The energy possessed by a body on account of its position or configuration, is called potential energy.

Mathematical expression for potential energy:

$$\begin{gathered} PotentialEnergy=mass\times accelerationduetogravity\times height \\ \therefore P.E.=m\times g\times h \end{gathered}$$

Hence, a stone lying on the top of a roof has potential energy due to its position above ground level.