A 500kg rocket travels in deep space of a constant speed of 300m/s. The power being produced by the rocket engine at this time:

A rocket moving in deep space at constant speed (300 m/s) has zero acceleration, meaning the net external force is zero. Power is defined as:P=F⋅v Since the net force F=0, the net mechanical power required to maintain constant velocity is also zero. In deep space (with no air resistance or gravity effects considered), no continuous external work is needed to keep the rocket moving uniformly due to Newton’s first law of motion. Hence, none of the given numerical options match the correct physical result.