Answer:
T = 5416.67 N
T = -2083.5 N
T = 0
Explanation:
Forward thrust has positive values and reverse thrust has negative values.
part a
Flight speed u = ( 150 km / h ) / 3.6 = 41.67 km / s
The thrust force represents the horizontal or x-component of momentum equation:

Answer: The thrust force T = 5416.67 N
part b
Now the exhaust velocity is now vertical due to reverse thrust application, then it has a zero horizontal component, thus thrust equation is:

Answer: The thrust force T = -2083.5 N reverse direction
part c
Now the exhaust velocity and flight velocity is zero, then it has a zero horizontal component, thus thrust is also zero as there is no difference in two velocities in x direction.
Answer: T = 0 N
Solution :
Given :

Operation time,
= 3000 hours per year

Operation time,
= 2000 hours per year
The density, ρ = 
The wind blows steadily. So, the K.E. = 

The power generation is the time rate of the kinetic energy which can be calculated as follows:
Power = 
Regarding that
. Then,
Power
→ Power = constant x 
Since,
is constant for both the sites and the area is the same as same winf turbine is used.
For the first site,
Power, 

For the second site,
Power, 
Answer:
a) 3.607 m
b) 1.5963 m
Explanation:
See that attached pictures for explanation.