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Q:
If lift=weight and thrust=drag in a steady level flight, what provides the acceleration at that instant?
A:
Acceleration is defined as any change in speed or direction. When the forces are equal and in opposite directions they cancel each other out, so when lift equals weight and thrust equals drag there will be no net force and the speed will be constant. Since the flight is level and the speed is constant there is no acceleration.
Posted on September 5, 2012 at 3:08 pm
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