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A block slides on a semicircular frictionless track.

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A block slides on a semicircular frictionless track. If it starts from rest at position (A), what is its speed at the point marked (B)? A picture of the block and slide is attached as a jpeg file. I believe the answer is 3.7 m/s. I need to see each step and formula to solve this question.

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The solution provides step-by-step explanations and calculations required.

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The key to understand this problem is conservation of energy. At point A, the block starts from rest, i.e. no kinetic energy (KE), it has maximum potential energy (PE) ...

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