A particle of mass 𝑚 is projected with a velocity 𝑣 making an angle of 45° with the horizontal. The magnitude of angular momentum of projectile about the point of projection when the particle is at its maximum height ℎ is

Question : A particle of mass 𝑚 is projected with a velocity 𝑣 making an angle of 45° with the horizontal. The magnitude of angular momentum of projectile about the point of projection when the particle is at its maximum height ℎ is