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## Homework Statement

Assume a 8-passenger learjet has a force of gravity of 66000 N [down] acting on it as it travels at a constant velocity of 640 km/hr [W]. if the forward thrust provided by the engines is 13000 N [W], determine:

a - the upward life force on the plane

b - the force due to air resistance on the plane

## Homework Equations

## The Attempt at a Solution

i have absolutely no clue on how to even begin, im so lost. please help, thanks.