A particle of mass 'm' is projected with a velocity `upsilon` making an angle of `30^(@)` with the horizontal. The magnitude of angular moment of the projectile about the point of projection when the particle is at its maximum height 'h' is

A particle of mass "m" is projected with a velocity ' "u" ' making an angle of 30^(@) with the horizontal. The magnitude of angular momentum of the projectile about the point of projection when the particle is at its maximum height "h" is :

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

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