Engineering :: Applied Mechanics

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The displacement of a particle under going rectilinear motion along the x-axis is given by x = 2t3 + 21t2 + 60t + 6 metres.

[A].	36 m/s2	[B].	9 m/s2
[C].	27 m/s2	[D].	18 m/s2

Answer: Option B