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A ball of mass \( 1 \mathrm{~kg} \) is projected with a velocity of \( 20 \sqrt{2} \mathrm{~m} / \mathrm{s} \) from the origin of an xy co-ordinate axis
P system at an angle \( 45^{\circ} \) with \( x \)-axis (horizontal). The

W angular momentum [In SI units] of the ball about the point of projection after \( 2 \mathrm{~s} \) of projection is [take \( g= \) \( \left.10 \mathrm{~m} / \mathrm{s}^{2}\right] \) ( \( y \)-axis is taken as vertical)
(1) \( -400 \hat{k} \)
(2) \( 200 \hat{j} \)
(3) \( 300 \hat{j} \)
(4) \( -350 \hat{j} \)
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