A small 2 g bullet moving at v0 2000 ms inbeds itself in a

Question

A small 2 g bullet moving at V₀= 2000 m/s, inbeds itself in a 1kg block at the top of an inclined plane with an angle of θ= 45⁰. The combined system then becomes a projectile, landing on the ground 10 m below the top of the incline. Calculate the final velocity just before the bullet-block system strikes the ground.

Use Energy methods, no credit for kinematics.