Do they have constant horizontal velocity? Let's find out ... this is real physics and real projectile motion. In that case, this would be a force diagram for the bird in the air: Yes, it is ...

Show the forces acting on an object in a free body diagram. The arrows represent ... This means the object could be travelling at a constant velocity. It could also be stationary or not moving ...

That situation is described by Newton's Second Law of Motion. Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity ...

Diagrams of Mean Velocity of Uniform Motion of Water in open Channels, based on the Formula of Ganguillet and Kutter. By Prof. Irving P. Church. 11 Diagrams + 1 page Text. (New York: Wiley and ...