On October 21, 2001, Ian Ashpole of the United Kingdom achieved a recordaltitude of 3.35 km (11 000 ft) powered by 600 toy balloons filled withhelium. Each filled balloon had a radius of about 0.58 m and an estimatedmass of 0.27 kg.(a) Estimate the total buoyant force on the 600 balloons.N

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Asked Nov 21, 2019
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On October 21, 2001, Ian Ashpole of the United Kingdom achieved a record
altitude of 3.35 km (11 000 ft) powered by 600 toy balloons filled with
helium. Each filled balloon had a radius of about 0.58 m and an estimated
mass of 0.27 kg.
(a) Estimate the total buoyant force on the 600 balloons.
N
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On October 21, 2001, Ian Ashpole of the United Kingdom achieved a record altitude of 3.35 km (11 000 ft) powered by 600 toy balloons filled with helium. Each filled balloon had a radius of about 0.58 m and an estimated mass of 0.27 kg. (a) Estimate the total buoyant force on the 600 balloons. N

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Expert Answer

Step 1

Given:

Altitude = 3.35 km

Number of balloons = 600

Radius of balloon = 0.58 m

Mass of each balloon = 0.27 kg

Density of air  = 1.29 kg.m-3

Step 2

Volume of each balloon can be calculated as:

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4 V =_nr* 3 where, ris the radius 4 22 V =-x 3 7 x(0.58) V 0.82m3

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Step 3

Buoyant force on each ba...

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where, pis the density Vis the volume g is the gravitational acceleration plug in the values FB 1.29x0.82 x 9.8 FB 10.34 N

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