Answer:
[tex]2.25\cdot 10^{18} J[/tex]
Explanation:
The energy equivalent of the mass of an object can be calculated by using the Einstein's equation:
[tex]E=mc^2[/tex]
where
E is the energy
m is the rest mass of the object
[tex]c=3\cdot 10^8 m/s[/tex] is the speed of light
For this object
m = 25 kg
So its equivalent energy is:
[tex]E=(25)(3\cdot 10^8)^2=2.25\cdot 10^{18} J[/tex]