A 3-M-Long Heavy Chain, Mass of 30 Kg, Is Lowered

Multiple Choice

A 3-m-long heavy chain, mass of 30 kg, is lowered at constant speed from a barn loft by a farmer. What is the tension in the chain at its midpoint of 1.5 m from an end?

A) 0 N
B) 200 N
C) 150 N
D) 100 N