# Always moving away!

A projectile is launched at an angle $$\theta$$ with initial velocity $$u$$. Let $$\theta = \theta_{max}$$ be the largest acute angle for which the projectile is always moving away from its launch point. Determine $$\lfloor\theta_{max}\rfloor$$ (in degrees).

Details and Assumptions:

• $$\bullet$$ $$g \approx 10m/s^2$$
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