Question

The volume of a balloon is 1000 m. It is filled with helium of density 0.18 kg//m. What maximum load can It lift? Density of air is 1.29 kg/m2​

Answer 1

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GIVEN:

Volume of balloon V= 1000m³

Density of helium = 0.18 kg/m³

Density of air = 1.29 kg/m³

TO FIND:

Maximum load the balloon can lift.

SOLUTION:

→Weight of helium filled balloon

$= v \times p \times g \\ = 1000 \times 0.18 \times g \\ = 180gN \\ = 180kgf$

→ Weight of air displaced=upthrust

$= v \times density \: of \: air \times g \\ = 1000 \times 1.29 \times g \\ = 1290gN \\ = 1290kgf$

→ Resultant upward force on balloon

$= upthrust - weight \: of \: balloon \\ = 1290 - 180 \\ = 1110kgf$

So, it can lift a maximum load of 1110 kgf.

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Answer 2

Answer:

Balloon can lift a load less then 1087.8 N

Balloon can lift a load less then 1087.8 NVolume of the balloon = 1000 m³.

σ = 1.29 kg/m3 and

ρ = 0.18 kg/m3.

Explanation:

hope it helps you