newton's third law questions [2 questions]

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If the DC-10 in the previous questions is flying at a constant altitude so that the action- reaaction forces are balanced, what is the lift force acting on the jet?



As the jet in the above quesion travels at constant velocity, it burns fuel, which decreases its weight to 165,454 kg, a safe weight for landing. In response to this decrease, what is the new lift dorce acting on the jet when altitude is maintained?

Thanks for the help,
Anna
 
The first question was: The weight force is the product of the multiplied by the acceleration due to graavity. If a DC-10 commercial passenger jet weighs 200 000 kilograms and gravity is 9.80 m/s^2, calculate the weight force.
 
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