A ball is thrown from the top of a tower with an initial velocity of \( 10 \mathrm{~m} \mathrm{~....

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A ball is thrown from the top of a tower with an initial
\( \mathrm{P} \)
velocity of \( 10 \mathrm{~m} \mathrm{~s}^{-1} \) at an angle of \( 30^{\circ} \) with the
W
horizontal. If it hits the ground at a distance of \( 17.3 \mathrm{~m} \) from the base of the tower, the height of the tower is (Take \( g=10 \mathrm{~m} \mathrm{~s}^{-2} \) )
(1) \( 5 \mathrm{~m} \)
(2) \( 20 \mathrm{~m} \)
(3) \( 15 \mathrm{~m} \)
(4) \( 10 \mathrm{~m} \)


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