- #1

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A balloon is filled with helium (density = .02 kg/m^3) and has a volume of .009 m^3. What is the buoyant force exerted on the balloon in air

(density = 1.3 km/m^3)?

Fb = (1.3 km/m^3)x (.009 m^3) x (9.80 m)

= .115 N

Thanks

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- Thread starter Eng67
- Start date

- #1

- 21

- 0

A balloon is filled with helium (density = .02 kg/m^3) and has a volume of .009 m^3. What is the buoyant force exerted on the balloon in air

(density = 1.3 km/m^3)?

Fb = (1.3 km/m^3)x (.009 m^3) x (9.80 m)

= .115 N

Thanks

- #2

Doc Al

Mentor

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- #3

SGT

Nitpick! Mass is measured in kg, not km. The latter is a measure of distance.

- #4

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Unit for density: [tex] kg/m^3 [/tex]

Unit for gravity: [tex] m/s^2 [/tex]

- #5

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Thanks for the help Guys. I just typed in Km instead of Kg.

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