Question

A balloon and the gas in it has mass of 500g and its volume 600litres what is the maximum load it can lift in

Answer 1

Answer:

density of block =91.3kg/m3

uplift from air =1.3kg×g

Downforce from balloon =1kg×g

So,

Extra weight that can be lifted =0.30gN

So, Considering buoyant force on itself,

⇒0.30g+1.3vg=91.3vg [where V is Volume of the block]

⇒0.3=90V

⇒V=3001m3