Taking the density of air to be 1.29 kg/m3, what is the magnitude of the linear...

Taking the density of air to be 1.29 kg/m³, what is the magnitude of the linear momentum of a cubic meter of air moving with the following wind speeds?

a) 15 km/h

b) 74 mi/h—the wind speed at which a tropical storm becomes a hurricane

Expert Solution

a) For a particle mometum=mv, where m is mass and v is velocity.

15 km/h=(15*5)/(18)= 4.17 m/s.

In one cubic metre, mass =density*volume

=1.29*1= 1.29 kg

momentum=mv=(1.29)*(4.17)

=5.375 kg-m/s

b)74 mi/h=33.081 m/s

mass=1.29*1=1.29 kg

momentum=mv=1.29*(33.081) kg-m/s

=42.67 kg-m/s

genius_generous answered 2 hours ago

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