One end of the string of length \( 1.0 \mathrm{~m} \) is tied to a body of mass \( 0.5 \mathrm{~...

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One end of the string of length \( 1.0 \mathrm{~m} \) is tied to a body of mass \( 0.5 \mathrm{~kg} \). It is whirled in a vertical circle with angular frequency \( 4 \mathrm{rad} / \mathrm{s} \). The tension in the string when the body is at the lower most point of its motion will be equal to (take, \( g=10 \mathrm{~m} / \mathrm{s}^{2} \) )
(a) \( 3 \mathrm{~N} \)
(b) \( 5 \mathrm{~N} \)
(c) \( 8 \mathrm{~N} \)
(d) \( 13 \mathrm{~N} \)
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