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.

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