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## Homework Statement

A 2598kg airplane is diving (at constant velocity) making an angle of 10 degrees to the horizontal. Find the lift force on the plane assuming that it is normal to the velocity?

I think my main problem is the fact that I'm having a bit trouble with understanding the terminology.

**2. The attempt at a solution**

Since it says that the plane makes an angle of 10 degrees to the horizontal whilst diving, I interpreted it as the angle is -10 degrees (i.e. south-east direction). Thus, the lift force would have an angle of 80 degrees.

The plane is diving at constant velocity, meaning the net force is 0. I tried different methods, but I couldn't come up with the right answer..