A uniform box of height \( 2 \mathrm{~m} \) and having a square base of side \( 1 \mathrm{~m} \)...

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A uniform box of height \( 2 \mathrm{~m} \) and having a square base of side \( 1 \mathrm{~m} \), weight \( 150 \mathrm{~kg} \), is kept on one end on the floor
\( \mathrm{P} \) of a truck. The maximum speed with which the truck can

W round a curve of radius \( 20 \mathrm{~m} \) without causing the block to tip over is (assume that friction is sufficient so that there is
no sliding).
(1) \( 15 \mathrm{~m} / \mathrm{s} \)
(2) \( 10 \mathrm{~m} / \mathrm{s} \)
(3) \( 8 \mathrm{~m} / \mathrm{s} \)
(4) depends on the value of coefficient of friction
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