A particle moves along a straight line with an acceleration a = 2v m/s2, where v is in m/s...

A particle moves along a straight line with an acceleration a = 2v m/s2, where v is in m/s. If s = 0, v = 4 m/s when t = 0, determine the time for the particle to achieve a velocity of 20 m/s. Also, find the displacement of particle when t = 2 s.