posted by Nikita on .
In a mechanical experiment with an isolated object, only Ekin and Epot of the object change. If the object accelerates from 5 m/s to 10 m/s, its potential energy has?
Potential energy has decreased by a factor of 2 because kinetic energy has increased by a factor of 2?
No, KE increases as v^2, or a factor of 4 here.