Sand moves without slipping at $6.0 \mathrm{~m} / \mathrm{s}$ down a conveyer that is tilted at $15^{\circ}$. The sand enters a pipe $3.0 \mathrm{~m}$ below the end of the conveyer belt, as shown in noURE P4.50. What is the horizontal distance $d$ between the conveyer belt and the pipe?
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