A body of mass \( 5 \mathrm{~kg} \) starts from the origin with an initial velocity \( \vec{u}=3...

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A body of mass \( 5 \mathrm{~kg} \) starts from the origin with an initial velocity \( \vec{u}=30 \hat{i}+40 \hat{j} m s^{-1} \). If a constant force \( \vec{F}=-(\hat{i}+5 \hat{j}) N \) acts on the body, the time in which the \( y \)-component of the velocity becomes zero is
[EAMCET (Med.) 2000]
(a) 5 seconds
(b) 20 seconds
(c) 40 seconds
(d) 80 seconds
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