Physics, 16.05.2021 03:50 NerdyE

A helicopter is hovering at an altitude of 1km when a panel from its underside breaks loose and plummets to the ground. The mass of the panel is 15kg and it its the ground with a speed of 45m/s. How much mechanical energy was dissipated by air resistance during the panel’s descent?

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A helicopter is hovering at an altitude of 1km when a panel from its underside breaks loose and plum...