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Why do kites fly ?


Just like an airplane there are four forces acting on the kite:upward force (lift),downward force (weight), backward force (drag) and forward force (thrust).The left is an upward force that pushes the kite up since kites are shaped so that the air moving over the top moves faster than the air moving over the bottom to make the pressure below the kite more than the pressure above it.The weight is the downward force due to gravitational attraction.The thrust is due to wind while the drag is due to friction. To launch a kite into the air the force of lift must be more than the weight. To keep a kite flying steady the four forces must be in balance.

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