In flight, a fixed wing aircraft experiences four forces:
The plane shown above is in equilibrium. It's flying straight and level at constant speed. The weight and thrust are known:
Based on this information what can you say about the size of the lift force?
L < \ 7500 N
L = \ 7500 N
L > \ 7500 N
Not enough information to say anything about lift.
Now the plane shown above increases the propeller thrust to T = 2500 N. What is the approximate acceleration of the vehicle in the x direction? (assume g = 10 m/s^2 )
a_x \approx 0 m/s^2
a_x \approx 0.1 m/s^2
a_x \approx 0.2 m/s^2
a_x \approx 0.3 m/s^2
a_x \approx 1 m/s^2
a_x \approx 2 m/s^2
a_x \approx 3 m/s^2
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