1.

A runner completes one round of a circular path of radius r in 40 sec ond . his displacement after 2 minute 20 second will be

Answer»

His displacement wil be 1/2 r
2MIN 20 sec=140sec
140/40=3.5and displacement is the shortest DISTANCE to the final point.it does not DEPEND on the distance covered. pls MARK as branliest



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