Given I climb two steps every second and I have a mass of 50kg, what is the power output of my legs in kilowatts? (3 significant figures)

(There is a diagram showing stairs with steps that are 20cm high)
Power = Energy/TimeEnergy required to climb one step = Work Done = ForceDistanceForce = Weight = mg = 509.81 = 490.5NEnergy = 490.50.2 = 98.1JPower = 98.1/0.5 = 196.2W = 0.196kW (3.s.f)