Suppose an object is doing uniform circular motion then the angle between the two vectors of it's velocity at two ends of the diameter will be what???

When a particle moves on a circular path with a constant speed, then its motion is known as uniform circular motion in a plane. The magnitude of velocity in circular motion remains constant but the direction changes continuously.


Thus, for a given angular velocity ω, the linear velocity v of the particle is directly proportional to the distance of the particle from the centre of the circular path (i.e) for a body in a uniform circular motion, the angular velocity is the same for all points in the body but linear velocity is different for different points of the body.


So the velocity vector at the two ends of the diameter are antiparallel or an angle of 180 degree