Question #7474

A plane is flying with a constant speed along a straight line at an angle of 60° with the

horizontal. The weight W of the plane is 90, 000 N and its engine provides a thrust T of

120, 000 N in the direction of flight. Two additional forces are exerted on the plane: the lift

force F perpendicular to the plane’s wings, and the force R due to air resistance opposite to

the direction of motion. Draw the free-body diagram showing all forces on the plane.

Determine F and R.

horizontal. The weight W of the plane is 90, 000 N and its engine provides a thrust T of

120, 000 N in the direction of flight. Two additional forces are exerted on the plane: the lift

force F perpendicular to the plane’s wings, and the force R due to air resistance opposite to

the direction of motion. Draw the free-body diagram showing all forces on the plane.

Determine F and R.

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