A particle starts from the origin and moves along the X-axis such that the velocity at any instant is given by 4t^3-2t, where t is in second and velocity is in ms^(-1). What is the acceleration of the particle when it is 2 m from the origin?

Question : A particle starts from the origin and moves along the X-axis such that the velocity at any instant is given by 4t^3-2t, where t is in second and velocity is in ms^(-1). What is the acceleration of the particle when it is 2 m from the origin?