Compute what minimum speed at the bottom is required

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A light, rigid rod is 59 centimeter long. Its top end is pivoted on a frictionless horizontal axle. The rod hangs straight down at rest with a small, massive ball attached to its bottom end. You strike the ball, suddenly giving it a horizontal velocity thus that it swings around in a full circle. Find what minimum speed at the bottom is required to make the ball go over the top of the circle?

Reference no: EM13681447

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