A stone is thrown with an initial speed of \( 4.9 \mathrm{~m} / \mathrm{s} \) from a bridge in v...

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A stone is thrown with an initial speed of \( 4.9 \mathrm{~m} / \mathrm{s} \) from a bridge in vertically upward direction. It falls down in water after 2 sec. The height of the bridge is [AFMC 1999; Pb. PMT 2003]
(a) \( 4.9 \mathrm{~m} \)
(b) \( 9.8 m \)
(c) \( 19.8 \mathrm{~m} \)
(d) \( 24.7 \mathrm{~m} \)
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