Question a skateboarder with an initial speed of 24ms rolls, Ask an Expert

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Question: A skateboarder, with an initial speed of 2.4m/s, rolls virtually friction free down a straight incline of length 19m in 3.2s.

Part A- At what angle is the incline oriented above the horizontal?

I have been stuck on this question for a long time, please help. Show steps. THANKS!

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