Question

A curtain is hanging at the entrance of a room. A long corridor runs at right angles to the door that is parallel to the curtain. If a strong wind blows along the corridor, then what will happen to the curtain. Explain

Answer 1

When the wind blows through the corridor, the curtain will be swayed through the door.

Since the corridor walls are at right angles with the door, then it will subtend an angle at the point where it is attached to the door and an arc.

The curtain will form the curved surface of the subtended arc.