Question: A projectile is fired from point A with an initial velocity v0. (a) Show that the radius of curvature of the trajectory of the projectile

A projectile is fired from point A with an initial velocity v0.

(a) Show that the radius of curvature of the trajectory of the projectile reaches its minimum value at the highest point B of the trajectory.

(b) Denoting by θ the angle formed by the trajectory and the horizontal at a given point C, show that the radius of curvature of the trajectory at C is ρ = ρmin / cos3 θ

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