The x and y coordinates of the particle at any time are $x = 5t – 2t^2$ and $y = 10 t$ respectively, where x and y are in meters and t in seconds. The acceleration of the particle at t = 2s is :

Question

( A ) $5\; m/s^2$
( B ) 0
( C ) $-8\; m/s^2$
( D ) $-4\; m/s^2$