The beam is supported by a fixed support at A and a flexible

The beam is supported by a fixed support at A and a flexible support with spring constant k at B. Find the reaction force at B for: k = 500 lb/inch k = 5,000 lb/inch k = 50,000 lb/inch k is infinitely stiff (the support at B is rigid)

Solution

since , at A there is a fixed support., So there will be a moment at A which will balance the moment due to 1000 lb load and a reaction wil also be at fixed support. So , the spring will remain rigid( k is infinitely stiff)