A helicopter is used to lift a 72.7 kg astronaut 16.9 m vertically out of the ocean by means of a cable. The astronaut rises with constant upward acceleration of magnitude 7.23 m/s2 until she reaches the helicopter. a) How much work is done by the helicopter on the astronaut? W=1/2MV^2=FS first try: V^2=2as W=mas=8882.9949J wrong second try: F=mg W=mgh=12052.8603J wrong someone help me please, thank you so much!!