Here's the question: Sand moves without slipping at 6.0 m/s down a conveyer that is tilted at 15 degrees. The sand enters a pipe 3.0 m below the end of the conveyer belt. What is the horizontal distance between the conveyer belt and the pipe? For some reason, I'm having the hardest time with this question. On first glance, I automatically think of the kinematic equations, but for some reason I'm not sure how to use them here. What are the triangles here? Any help is appreciated!