Respuesta :
Answer:
Change in potential energy is 700.7 J.
Explanation:
Given:
Mass of the object is, [tex]m=286[/tex] kg
Height to which the object is raised above his head, [tex]h=0.25[/tex] m
Acceleration due to gravity is, [tex]g=9.8[/tex] m/s²
We know that for a mass [tex]m[/tex] raised to a height [tex]h[/tex], the change in potential energy is given as:
[tex]\Delta PE=mgh[/tex], where, [tex]\Delta PE\rightarrow \textrm{Change in Potential Energy}[/tex]
Now, plug in the given values and solve.
[tex]\Delta PE=286\times 9.8\times 0.25=700.7\textrm{ J}[/tex]
Therefore, the change in the potential energy is 700.7 J.
