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If the velocity of a spring mass system which starts from zero is given by $6 \sin(4t)$ then its amplitude of displacement and accelerations are

$\begin{array}{1 1}(a)\;5\;\&\;3 \\(b)\;1.5\;\&\;24 \\( c)\; 15\;\&\;1.67 \\(d)\;15\;\&\;3 \end{array}$

1 Answer

Displacement $=\large\frac{6}{4}$$(1- \cos 4t)$ and acceleration $= 24 \cos 4t $
Hence b is the correct answer.
answered Dec 11, 2013 by meena.p

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