The time taken by a block of wood (initially at rest) to slide down a smooth inclined plane \( 9...

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The time taken by a block of wood (initially at rest) to slide down a smooth inclined plane \( 9.8 \mathrm{~m} \) long (angle of inclination is \( 30^{\circ} \) ) is
[JIPMER 1999]
(a) \( \frac{1}{2} \sec \)
(b) \( 2 \sec \)
(c) \( 4 \mathrm{sec} \)
(d) \( 1 \mathrm{sec} \)
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