Question

A particle of mass m moves with constant velocity v along a straight line at perpendicular distance d from the origin. Its angular momentum about the origin is

A 2 kg particle moves in a circle of radius 3 m with speed 4 m s−1. Its angular momentum about the centre is

A 1 kg particle at r⃗ = (î + ĵ) m moves with v⃗ = (2î − ĵ) m s⁻¹. Its angular momentum about the origin is

A particle of mass 0.5 kg moves with constant speed 5 m/s along the straight line AB, from A towards B, as shown in the figure (OA = 4 m on the x-axis, OB = 3 m on the y-axis). Its angular momentum about the origin O is