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Home  >>  JEEMAIN and NEET  >>  Physics  >>  Class11  >>  Oscillations

If the velocity of a spring mass system which starts from zero is given by $7 \sin(4t)$ then its amplitude of displacement and accelerations are

$\begin{array}{1 1}(a)\;5\; \&\; 3 \\(b)\;1.75\; \& \;28 \\( c)\; 15\; \&\; 1.67 \\(d)\;15 \;\& \;3 \end{array}$

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1 Answer

$velocity= 7 \sin 4t;$
displacement = $\large\frac{7}{4} $$(1-\cos 4t);$
acceleration $=28 \cos w$
Hence b is the correct answer.
answered Dec 11, 2013 by meena.p
 

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