Answer: Steel has higher elasticity
Notes: A shock absorber is a mechanical device designed to smooth out or damp shock impulse, and dissipate kinetic energy. Steel is an alloy made by combining iron and other elements, the most common of these being carbon. When carbon is used, its content in the steel is between 0.2% and 2.1% by weight, depending on the grade. Steel of varied grades is used in the manufacturing of shock absorbers because of their required high elasticity and ductility.
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