Two spring having stiffness constants of 22N/mm and 25N/mm are connected in parallel. They are to be replaced by a single spring to have same effect. The stiffness of that spring will be?

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Springs topics include: Spring design, helical springs, spiral springs, concentric springs and multi leaf springs. Springs are mechanical devices that store energy and can be found in many types of machines. They can be classified by how the load is applied to them or by how they are made.  Here are some types of springs: Helical springs: These springs have a helix shape and different cross-sections. They are the most common type of spring in rapid prototyping. Leaf springs: These springs are made from rectangular metal plates or leaves that are bolted and clamped. They are used in shock... Show more

Two spring having stiffness constants of 22N/mm and 25N/mm are connected in parallel. They are to be replaced by a single spring to have same effect. The stiffness of that spring will be?