A 4600 kg helicopter accelerates upward at 2.0 m/s2. Determine the lift force exerted on the propellers by the air. Make a quantitative force diagram. Include your coordinate system and a motion map, including the direction of acceleration. Write a force (N2L) equation for the axis along which forces are not balanced.

Question
Asked Oct 30, 2019

A 4600 kg helicopter accelerates upward at 2.0 m/s2. Determine the lift force exerted on the propellers by the air. Make a quantitative force diagram. Include your coordinate system and a motion map, including the direction of acceleration. Write a force (N2L) equation for the axis along which forces are not balanced.

check_circleExpert Solution
Step 1

Equation for lift force exerted is

= ma
Σ.
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= ma Σ.

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Step 2

Re-write the expression with...

AF
ext
2 m/s2
mg
Figure1
Fext mg ma
Fext 3 m(а+g)
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AF ext 2 m/s2 mg Figure1 Fext mg ma Fext 3 m(а+g)

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