The relation between time 't' and distance 'x' is t = αx^2+ βx, where α and β are constants. The

The relation between time 't' and distance 'x' is t = αx^2+ βx, where α and β are constants. The relation between acceleration (a) and velocity (v) is:
(a) a = -2αν³ (b) a = -4αν4
(c) a=-3αν² (d) a= -5αν5