The displacement of a particle undergoing rectilinear motion along the x-axis is given by x = 2t3- 21t2 + 60t + 6 (m) The acceleration of the particle when its velocity is zero, is ?->(Show Answer!)

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1. The displacement of a particle undergoing rectilinear motion along the x-axis is given by x = 2t3- 21t2 + 60t + 6 (m) The acceleration of the particle when its velocity is zero, is

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