The hawk, weighing 0.4 kg, was lifted by an air stream to a height of 70 meters. Determine the work of the force that raised the hawk.

Given: m = 0.4 kg, h = 70 m, g = 10 Newt / kg.
Find: A-?
Decision:
A = P * h; A = mgh; A = 0.4 kg * 10 N / kg * 70 m; A = 280 Joules.
Answer: A = 280 Joules



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