The motion of a particle along a straight line is described by equation : π‘₯ = 8 + 12𝑑 βˆ’ 𝑑 3 Where π‘₯ is in meter and t in second. The retardation of the particle when its velocity becomes zero, is

Question : The motion of a particle along a straight line is described by equation : π‘₯ = 8 + 12𝑑 βˆ’ 𝑑 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 :

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