Question #27520

A plane is flying with a constant speed along a straight line at an angle of 30° with the horizontal.

The weight of the plane is 80, 000 N and its engine provides a thrust of 100, 000 N in the

direction of flight. Two additional forces are exerted on the plane: the lift force perpendicular to

the plane’s wings, and the force due to air resistance opposite to the direction of motion. Draw

the free-body diagram showing all forces on the plane. Determine the lift force and the force due

to air resistance.

The weight of the plane is 80, 000 N and its engine provides a thrust of 100, 000 N in the

direction of flight. Two additional forces are exerted on the plane: the lift force perpendicular to

the plane’s wings, and the force due to air resistance opposite to the direction of motion. Draw

the free-body diagram showing all forces on the plane. Determine the lift force and the force due

to air resistance.

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