Velocity From a Force-Time Graph

A 2 kg object, initially at rest, is acted upon by a net external force for 5 seconds. The force varies with time such that it increases linearly from 0 N to 10 N between t = 0 s and t = 2 s, remains constant at 10 N until t = 4 s, and then decreases linearly to 0 N at t = 5 s. What is the final velocity of the object?