A particle is moving along a straight line with an initial velocity of 4 m/s when it is subjected to a deceleration of ( a = (-1.7 v{1/2}) ) m/s², where ( v ) is in m/s. What is the particle's velocity after 3 seconds?
a) 2 m/s
b) 3 m/s
c) 4 m/s
d) 5 m/s