What is the time of the takeoff roll (s)? GIVEN INFORMATION: Use \"g\" = 32.2 ft

Question

What is the time of the takeoff roll (s)?
GIVEN INFORMATION:
Use "g" = 32.2 ft / s2
1 knot = 1.69 ft / s
Gross Weight = 20,000 pounds
Lift Off Speed = 125 KTAS
Average Drag = 2,000 pounds
Average Friction Force = 400 pounds
Average Thrust = 10,000 pounds 10 seconds 14 seconds 17 seconds 24 seconds What is the time of the takeoff roll (s)?
GIVEN INFORMATION:
Use "g" = 32.2 ft / s2
1 knot = 1.69 ft / s
Gross Weight = 20,000 pounds
Lift Off Speed = 125 KTAS
Average Drag = 2,000 pounds
Average Friction Force = 400 pounds
Average Thrust = 10,000 pounds 10 seconds 14 seconds 17 seconds 24 seconds 10 seconds 14 seconds 17 seconds 24 seconds

Explanation / Answer

14 seconds

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