officialmollyyy8951 officialmollyyy8951
  • 19-07-2019
  • Engineering
contestada

A 60-kg person walks from the ground to the roof of a 74.8 m tall building. How much potential energy does she have at the top of the building?

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A1peakenbe A1peakenbe
  • 23-07-2019

Answer:

44027.28 Joules

Explanation:

We know that Potential Energy of a body of mass 'm'  is given by

[tex]Potential Energy = m\times g\times h[/tex]

where

g= acceleration due to gravity with value = 9.81[tex]m/s^{2}[/tex]

h = height above the ground level

Applying given values in the formula we get

[tex]Potential Energy = 60kg\times 9.81m/s^{2}\times74.8m[/tex]

Thus [tex]Potential Energy= 44027.28Joules[/tex]

[tex]Potential Energy= 44.027Kilo-joules[/tex]

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