4.19 Read each statement below carefully and state, with reasons, if it is true or false :
(a) The net acceleration of a particle in a circular motion is always along the radius of the circle towards the center
(b) The velocity vector of a particle at a point is always along the tangent to the path of the particle at that point
(c) The acceleration vector of a particle in uniform circular motion averaged over one cycle is a null vector
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