Question : The motion of a particle along a straight line is described by equation : π₯ = 8 + 12π‘ β π‘ 3 Where π₯ is in meter and t in second. The retardation of the particle when its velocity becomes zero, is
(A) 24m^{-2}
(B) zero
(C) 6m^{-2}
(D) 12m^{-2}
Answer : option (D)
Solution :
