Problem 17.26

The jet aircraft has a total mass of

26 Mg and a center of mass at G. Initially at take-off the engines provide a thrust 2T = 5 kN and T′ = 2.5 kN . Neglect the mass of the wheels and, due to low velocity, neglect any lift caused by the wings.

Part A

Determine the magnitude of the acceleration of the plane.

Express your answer to three significant figures and include the appropriate units.

aG =

0.288 ms2

Part B

Determine the normal reaction on the nose wheel at A.

Express your answer to three significant figures and include the appropriate units.

NA =

86.0 kN

Part C

Determine the normal reactions on each of the two wing wheels located at B.

Express your answer to three significant figures and include the appropriate units.

NB =

84.5 kN