As the driver steps on the gas pedal, a car of mass 1 180 kg accelerates from rest. During the first few seconds of motion, the car's acceleration increases with time according to the expression below, where t is in seconds and a is in m/s2. a = 1.19 t - 0.210 t^2 + 0.240 t^3
(a) What is the change in kinetic energy of the car during the interval from t = 0 to t = 2.60 s?
(b) What is the minimum average power output of the engine over this time interval?