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In: Physics

A helium-filled balloon is attached to one en of a uniform wooden beam, lifting it partially...

A helium-filled balloon is attached to one en of a uniform wooden beam, lifting it partially up off of the ground. The beam is 2.25 meters long and it weighs 578N. What Volume of helium is required to hold the beam up at an angle of 30.0⁰ ? (You can ignore the weight of the empty balloon and the wire connecting it to the beam.)

Solutions

Expert Solution

First, find the buoyant force

Refer the figure

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Take moment about O

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Consider the ballon

The buoyant force is acting upwards

Weight of the helium is acting downwards

Tension on the string is acting downwards

Tension + Weight of helium = Buoyant force

ANSWER:

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genius_generous answered 2 months ago

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