A steel wire 40m long is suspended between two fixed points 20m apart. A force of 375N pulls the wire down at a point 15m from one end of the wire. State the tension in each part of the wire.
Steel wire - 40m
Two points that are holding the wire up is 20m apart
375N force down 15m from one end of the wire
I suppose it may be helpful to know that this is from the Vector Concepts of my textbook, dealing with Force as a vector.
The Attempt at a Solution
I have had trouble understanding this question. My attempt at a solution is thinking that the wire would bend into two parts, one 15m long and the other 25m long. I simply split the force into a 5:3 ratio but it was clearly wrong. The back of the book states that the answer is: 375N and 0N
I do not understand how that answer can be attained, why is it that if a force acts down 15m from one end of the wire that there can be no tension on one end and the full thing on the other?