Explanation:
Given mass of the object is 1200kg and it's placed at a height of 45m above the ground. As we know that potential energy is ,
[tex]\longrightarrow PE = mgh [/tex]
where,
- m is the mass of the body .
- g is acceleration due to gravity.
- h is the height above the ground .
Substituting the respective values ,
[tex]\longrightarrow P.E. = 1200kg * 10m/s^2* 45m[/tex]
Multiply ,
[tex]\longrightarrow P.E. = 540000J [/tex]
Hence the potential energy is 540000J .
I hope this helps.
