A Bucket of Water with Total Mass 23 Kg Is

question 22

Multiple Choice

A bucket of water with total mass 23 kg is attached to a rope,which in turn,is wound around a 0.080-m radius cylinder at the top of a well.A crank with a turning radius of 0.25 m is attached to the end of the cylinder.What minimum force directed perpendicular to the crank handle is required to just raise the bucket? (Assume the rope's mass is negligible,that the cylinder turns on frictionless bearings,and that g = 9.8 m/s². )

• A) 45 N
• B) 68 N
• C) 72 N
• D) 135 N

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