The $2\mathrm{.}2-$kg collar is released from rest at A and slides down the inclined fixed rod in the vertical plane. The coefficient of kinetic friction

is $0\mathrm{.}42.$ Calculate $(a)$ the velocity $v$ of the collar as it strikes the spring and $(b)$ the maximum deflection $x$ of the spring.

Answers:

$($a$)v=$

$\frac{m}{s}$

$($b$)x=$

mm