Verified answer

Answer:

Therefore, the Potential Energy of the regular chair is 51.45J

Step-by-step explanation:

To find the Potential Energy of the regular chair, we have to use PE formula below:

• [tex]\boxed{\bold{PE = mgh}}[/tex]

Wherein,

• [tex]PE[/tex] - represents the Potential Energy of an object
• [tex]m[/tex] - represents the mass of the object
• [tex]g[/tex] - represents the gravitational force ([tex]g = 9.8[/tex] m/s²)
• [tex]h[/tex] - represents the height of an object

Given as follows:

• [tex]m[/tex] = 7kg
• [tex]h[/tex] = 0.75m

Substitute the given values to the formula:

• [tex]\rm{PE = (7)(9.8)(0.75)} \\\\ \rm{PE = 5.25(9.8)} \\\\ \rm{PE = 51.45}[/tex]

Therefore, the Potential Energy of the regular chair is 51.45J