An electric cart of mass \(m\) uses a regenerative braking system that exerts a constant retarding force to bring the cart to rest from an initial speed \(v_0\) over a stopping distance \(d\). During this process, the total energy recovered by the system is \(E_0\) and the maximum instantaneous power absorbed by the system is \(P_0\). In a second test, the cart is brought to rest over the same stopping distance \(d\) from an initial speed of \(2v_0\) using a different constant retarding force. What are the total energy recovered \(E'\) and the maximum instantaneous power absorbed \(P'\) during the second test in terms of \(E_0\) and \(P_0\)?