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This tag is for questions relating to projectile, object moving through space due to the exertion of a force. The path of a projectile is called its trajectory.
8
votes
Accepted
Find the max projection angle so that distance from point of projection always increases
The equations of motions for a projectile are,
$$
x(t) = v_0 \cos(\theta)t,
$$
$$
y(t) = -\frac{1}{2}gt^2+v_0 \sin(\theta)t.
$$
Therefore the distance from the point of projection is,
$$
r(t)=\sqrt …