A Bucket in an Old Well Is Hoisted Upward by a Rope

question 20

Multiple Choice

A bucket in an old well is hoisted upward by a rope which winds up on a cylinder having a radius of 0.050 m.How many rev/s must the cylinder turn if the bucket is raised at a speed of 0.20 m/s?

• A) 3.0 rev/s
• B) 1.5 rev/s
• C) 0.48 rev/s
• D) 0.64 rev/s

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