Kite drag: 5m high and 7m wide Tarpaulin/kite (350gsm) on a 45 degree pitch

[samfoster1982]

If a 5m high and 7m wide Tarpaulin/kite (350gsm) on a 45 degree pitch with wind blowing directly under it what would be the upwards force in Kg?

 

[stapel]

If a 5m high and 7m wide Tarpaulin/kite (350gsm) on a 45 degree pitch with wind blowing directly under it what would be the upwards force in Kg?

Does "gsm" stand for "grams per square meter" (here) or something else? What do you mean by the "wind blowing directly under it"? Are you saying that the wind is blowing straight up from the ground? What do you mean by a force in "kilograms"? Do you mean kiloponds (here) or maybe instead you're supposed to use Newtons?

Is there anything on this NASA listing that is close to what your class is working on? For instance, they have this page regarding the forces on a kite (though I don't think they use differential equations).

When you reply, please include a clear listing of your thoughts and efforts so far, including how you feel you are expected to bring the techniques of differential equations to bear on this exercise. Thank you!