A particle travels along a straight line with a uniform velocity. Its angular momentum

Step-by-step solution

The angular momentum of a particle about a reference point is given by L = r p = m( r v ) . The magnitude of the angular momentum is L = mvr = mvd , where d is the perpendicular distance from the reference point to the line of motion. Since the particle moves with uniform velocity, its speed v is constant and its line of motion is fixed. For any given fixed reference point, the perpendicular distance d remains constant. The direction of L is determined by the right-hand rule and also remains constant. Thus, the ang