A bucket filled with water has a mass of 23 kg and is attached to a rope, which in turn, is wound around a 0.050-m radius cylinder at the top of a well. What torque does the weight of water and bucket produce on the cylinder if the cylinder is not permitted to rotate

11.27 Nm

Explanation:

Given

mass of bucket with water is

radius of cylinder

If the cylinder is not permitted to rotate

Torque is given by the product of Force and distance of force from axis of rotation

where F=weight of bucket with water

d. air pressure decreases as altitude increases.

the answer is b, have negligible mass