The displacement of an object "attached to a spring and executing simp – McqOptions

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1.	The displacement of an object "attached to a spring and executing simple harmonic motion is given by \[x=2\times {{10}^{-2\,\,\,}}\cos \,\pi t\] metre. The time at which the maximum speed first occurs is
A.	0.25s
B.	0.5s
C.	0.75s
D.	0.125s
Answer» C. 0.75s

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