QUESTION $1$

This question is about work and energy.

The cylinder in Figure Q$1$ has a mass of $18kg$ and is connected with two springs, each spring has a stiffness of $k=42\frac{N}{m}.$ The springs each have an un$-$stretched length of $2m,$ when they are horizontally aligned at $h=0($i$.$e$.$ at rest$).$ If the cylinder is released down from its initial place at $h=0$ to $h=2\mathrm{.}2m.$ Select the right value of the cylinder speed, when $h=2\mathrm{.}2m.$

a$)5\mathrm{.}45\frac{m}{s}$

b$)6\mathrm{.}95\frac{m}{s}$

c$)6\mathrm{.}22\frac{m}{s}$

d$)4\mathrm{.}22\frac{m}{s}$

e$)$ No answer