Sufficient work done?

A smooth track in the form of a quarter circle of radius $6\text{ m}$ lies in the vertical plaine (as shown in figure above). A particle of weight $4N$ moves from $P_1$ to $P_2$ under the action of forces $\vec{F_1}, \vec{F_2}, \vec{F_3}$ . Force $\vec{F_1}$ is always towards $P_2$ and is always $20N$ in magnitude, force $\vec{F_2}$ always acts horizontally and is always $30N$ in magnitude, force $\vec{F_3}$ always acts tangentially to the track and is of magnitude $(15-10s)N$ when $s$ is in meters.

If the particle has speed $4 \text{ m/s}$ at $P_1$ , what will be its speed be at $P_2$ ? Give your answer in 1 decimal place and in $\text{ m/s}$ . Assume take $g = 9.8 \text{ m/s}^2$ .