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29 December, 23:08

A hot air balloon has a mass of 300 k gincluding the basket. The hot air inside the balloon weighs 17,000 N. Determine the maximum load that the balloon is able to lift displaces 25,000 N of cold air. Use 10 m/s 2 for gravity.

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  1. 29 December, 23:21
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    500 kg

    Explanation:

    If 17000 N hot air weight displaces 25000 N cold air weight, then the difference of 25000 - 17000 = 8000 N in weight would result in the buoyant force that lift the whole system.

    If g = 10m/s2 then the total mass that it can lift (including the 300kg basket) is

    8000 / 10 = 800 kg

    So the maximum additional load that the balloon is able to lift is

    800 - 300 = 500 kg
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