a body complete a circular path of radius 7m in 4 sec find average speed
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radius is 7 metre so
total distance is equal to circumference
2πr=2×22/7×7 =44m
average speed= total distance/total time=44/4= 11m/s
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r= 7m
t= 4s
circumference= 2πr = 2×22/7×7 = 44m
∴speed= distance/time = 44/4 = 11m/s
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