Question

Answer this with steps pls

Answer 1

dx/dt =12-3t^2 which is V. dx^2/dt^2 =-6t which is retardation . when v =0, 12=3t^2,, t=2 sec,, put t =2 in retardation eqn wrote above ,hence retardation is -6×2 =-12 -sign represent retardation hence ans is 12 m/s^2 HOPE IT HELP YOU