In this paper we present an investigation about analytical method used for analysis beams subjected to transversal impact. The methods are: energy balance models, spring-mass models and complete models. We consider 8 numerically example. Two from this example are presented in the literature: impact on a half-space by a steel ball [1, 4] and Timosheiiko`s example, impact on a simple supported beam [1, 2, 3, 5]. The result were compared using all three method presented.