From the tail view, in which direction do the vortices circulate around the left tip?

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Multiple Choice

From the tail view, in which direction do the vortices circulate around the left tip?

Explanation:
When you view the airplane from the tail looking forward, the direction of the vortex around each wingtip is the result of how air circulates around the tip as the wing produces lift. The two tips generate vortices with opposite senses because the air curls around the tips in opposite directions to satisfy the lift-induced circulation. Around the left tip, the circulation appears as a clockwise rotation from this tail view. Air from below the wing curls up and around the tip, continuing behind the wing in a clockwise path as you look from the tail. The right tip would show the opposite sense. So, the vortices circle clockwise around the left tip when seen from the tail.

When you view the airplane from the tail looking forward, the direction of the vortex around each wingtip is the result of how air circulates around the tip as the wing produces lift. The two tips generate vortices with opposite senses because the air curls around the tips in opposite directions to satisfy the lift-induced circulation.

Around the left tip, the circulation appears as a clockwise rotation from this tail view. Air from below the wing curls up and around the tip, continuing behind the wing in a clockwise path as you look from the tail. The right tip would show the opposite sense.

So, the vortices circle clockwise around the left tip when seen from the tail.

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