A particle of mass \( m \) moves from rest under the action of a constant force \( F \) which ac...

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A particle of mass \( m \) moves from rest under the action of a constant force \( F \) which acts for two seconds. The maximum power attained is :
(A) \( 2 \mathrm{Fm} \)
(B) \( \frac{F^{2}}{m} \)
(C) \( \frac{2 F}{m} \)
(D) \( \frac{2 F^{2}}{m} \)
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