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

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 0.15 m/s?

A) 3.0 rev/s
B) 1.5 rev/s
C) 0.48 rev/s
D) 0.24 rev/s