Answer:
Solution:
As per the question:
Temperature,
Pressure,
Therefore, from the eqn:
We can write:
Thus
where
= Exit temperature
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Given parameters:
Duration of crash = 9min
Velocity before crash = 2000 yards per second
Unknown:
Acceleration of the plane = ?
Solution:
Acceleration is the change of velocity with time.
Acceleration =
where v is the final velocity
u is the initial velocity
t is the time taken
We need to convert the time into seconds from min;
60s = 1 min
So, 9min = 60 x 9 = 540s
So input the parameters and solve;
Acceleration = = 3.7yards/s²
The acceleration of the plane is 3.7yards/s²