When t = 2, the particle is at (8, 0.6).

so

At t = 2,

dx/dt = v_x = 20/25 = 0.8 ms^-1.

Also, so

When t = 2,

dy/dt = v_y = 0.5 ms^-1.

So

Now for the direction:

So θ_v = 0.558 radians