A bucket is raised from a well by means of a rope which is wound round a wheel of diameter 77 cm. Given that the bucket ascends in 1 minute 28 seconds with a uniform speed of 1.1 m/sec, calculate the number of complete revolutions the wheel makes in raising the bucket.
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Time of ascent=1 minute 28 seconds
=60+28=88 seconds
Distance moved by bucket=speed×time
Circumference of wheel
Number of complete revolutions the wheel makes while rising bucket
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