a body covers a circular path of radius 21cm and after travelling 3/4 portion of circle it stops. Calculate distance and displacement?
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Answer:
Explanation:
Average speed=Distance/Time
=Semicircle/20
=πr/20
=220/20
=11 m/s
Average velocity=Dispacement/time
=diameter/20
=140/20
=7 m/s
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