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
The Attempt at a Solution
i have absolutely no clue on how to even begin, im so lost. please help, thanks.