Given data:
* The weight of the person is 977.08 N.
* The numebr of the stairs given is 57.
* The height of the each stair is 0.30 m.
Solution:
The energy required to reach the top of the stairs is,
[tex]U=\text{mgH}[/tex]where mg is th weight of the person and H is the total height of the stairs,
Substituting the known values,
[tex]\begin{gathered} U=977.08\times(57\times0.30) \\ U=16708.07\text{ J} \\ U=16.71\times10^3\text{ J} \\ U=16.71\text{ kJ} \end{gathered}[/tex]Thus, the energy required to reach the top of the stairs is 16708.07 J or 16.71 kJ.
