I've already posted this under binaries.animations, but I'll ask here as
well.

My problem is as follows:
I have a particle with given speed and position. I want it to cross a
certain position. If I have to consider gravity, I need means of finding
if:
-the given speed is sufficient at all
-which would be the minimum speed required
-the direction the particle should head with the given/calculated speed

Hope this is not too much for someone to answer... ;)

Tim

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