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kevinlikesphysics
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a 4500kg helicopter accelerates upward at 2m/s^2 what lift force is exerted by the air on the propellers?
What equation do you use for this?
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SUMMARY
The discussion focuses on calculating the lift force exerted by air on a 4500 kg helicopter that accelerates upward at 2 m/s² using Newton's Second Law. The total lift force must counteract both the gravitational force and provide the necessary force for upward acceleration. The gravitational force is calculated as 4500 kg multiplied by 9.81 m/s², resulting in 44145 N. The total lift force required is therefore 44145 N plus the force needed for acceleration, which is 9000 N, leading to a total lift force of 53145 N.
PREREQUISITES- Understanding of Newton's Second Law of Motion
- Basic knowledge of forces, including weight and lift
- Familiarity with unit conversions (N, kg, m/s²)
- Ability to perform basic algebraic calculations
- Study advanced applications of Newton's Laws in aerodynamics
- Explore the principles of lift generation in rotorcraft
- Learn about the effects of altitude on helicopter performance
- Investigate the role of thrust-to-weight ratio in helicopter design
Aerospace engineers, physics students, and anyone interested in the mechanics of flight and helicopter dynamics.