Passage: The displacement of a body is given by \( 4 s=M+2 N t^{4} \), where \( M \) and \( N \)....

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Passage: The displacement of a body is given by
\( \mathrm{P} \)
\( 4 s=M+2 N t^{4} \), where \( M \) and \( N \) are constants.
W
The velocity of the body at any instant is
(1) \( \frac{M+2 N t^{4}}{4} \)
(2) \( 2 N \)
(3) \( \frac{M+2 N}{4} \)
(4) \( 2 \mathrm{Nt}^{3} \)


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