A damper is designed to be used to stop the robot at the edges of the panels. See figure $2.$ Given that the damper spring had stiffness $1\mathrm{.}9$kN$/$m and the robot had a mass of $3\mathrm{.}5$ kg

$$ Apply reasoning to show the effect of energy transfer in the damper $($figure $2)$ if the rest position equal to $20$ mm and the collision of the robot causes additional deflection of $2\mathrm{.}73$ mm$.$Figure $"2"-$ damper spring system