The equation of motion of a particle moving along a straight line is \[s=2\]\[{{t}^{3}}-9{{t}^{2}}+12t\], where the units of s and t are cm and sec. The acceleration of the particle will be zero after

The equation of motion of a particle moving along a straight line is \

1.	The equation of motion of a particle moving along a straight line is \[s=2\]\[{{t}^{3}}-9{{t}^{2}}+12t\], where the units of s and t are cm and sec. The acceleration of the particle will be zero after
A.	\[\frac{3}{2}\,sec\]
B.	\[\frac{2}{3}sec\]
C.	\[\frac{1}{2}sec\]
D.	Never
Answer» B. \[\frac{2}{3}sec\]

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The equation of motion of a particle moving along a straight line is \[s=2\]\[{{t}^{3}}-9{{t}^{2}}+12t\], where the units of s and t are cm and sec. The acceleration of the particle will be zero after

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