Displacement due to it is modeled by differential equations with solutions 
Displacement due to it is modeled by differential equations with solutions like y double prime plus y equals zero. It can be considered a one- dimensional projection of uniform circular motion, and is undergone by springs that follow Hooke‘s  Law. FTP, name this perpetual periodic oscillation with constant amplitude.
Displacement due to it is modeled by differential equations with solutions like y double prime plus y equals zero.