Regarding the “Radius of Curvature” for a projectile.
I. The radius of curvature is constant throughout the flight.
II. The radius of curvature is minimum at the highest point of the trajectory.
III. At the highest point, the radius of curvature is equal to v²/g, where v is the horizontal speed.
IV. At the point of projection, the radius of curvature depends on the angle of projection.
V. The radius of curvature is inversely proportional to the component of acceleration perpendicular to velocity.
