Answer:
The statement is wrong, because an external force is
required to move a body uniformly in a circle. This is centripetal force, which
acts on the particle.
The
centrifugal force which is equal and opposite to the centripetal force comes
into play on account of tendency of the particle to get back to the straight
line path. This force does not act on the particle. It acts on the agent
supplying the necessary centripetal force.
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