Answer: The correct answer is 5488 J.
Step-by-step explanation:
The expression for the potential energy is as follows;
PE= mgh
Here, m is the mass of the object, g is the acceleration due to gravity and h is the height.
It is given in the problem that An object with a mass of 70 kilograms is supported at a height 8 meters above the ground.
Calculate the potential energy of the object with respect to the ground.
PE= mgh
Put m= 70 kg, g= 9.8 meter per second square and h= 8 m.
PE= (70)(9.8)(8)
PE= 5488 J
Therefore, the potential energy of the object is 5488 J.