Compute the acceleration on the aircraft during the takeoff roll (ft / s 2 ). GI

Question

Compute the acceleration on the aircraft during the takeoff roll (ft / s2).
GIVEN INFORMATION:
Note: Use "g" = 32.2 ft / s2
Gross Weight = 20,000 pounds
Average Drag = 2,000 pounds
Average Friction Force = 400 pounds
Average Thrust = 10,000 pounds 12.2 ft/s2 3.8 ft/s2 22 ft/s2 6.1 ft/s2 Compute the acceleration on the aircraft during the takeoff roll (ft / s2).
GIVEN INFORMATION:
Note: Use "g" = 32.2 ft / s2
Gross Weight = 20,000 pounds
Average Drag = 2,000 pounds
Average Friction Force = 400 pounds
Average Thrust = 10,000 pounds 12.2 ft/s2 3.8 ft/s2 22 ft/s2 6.1 ft/s2 12.2 ft/s2 3.8 ft/s2 22 ft/s2 6.1 ft/s2

Explanation / Answer

F = 10,000 lb
m = 20,000/32.2
m = 621.12 slug

We know that :
F = m*a
10,000 lb = 621.12 slug * a
Acceleration :
a = 10,000/621.12
a = 16.1 ft/s^2

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