a body yravels along a circular path of radius 70cm, after travelling half a revolution in20 seconds.find the aberage speed.
please please please please please answer
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distance = πr = 3.14 × 0.7 = 2.198 m
speed = 2.198 ÷ 20 = 0.1099 m/sec
speed = 2.198 ÷ 20 = 0.1099 m/sec
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