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A heavy ball with a weight of 120 is hung from the ceiling of a lecture hall on a 5.0--long rope. The ball is pulled to one side and released to swing as a pendulum, reaching a speed of 6.0 as it passes through the lowest point.

What is the tension in the rope at that point?

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Welcome to physics.se. Our FAQ is very clear that we don't answer elementary exercises as such, but we will address very basic conceptual questions. To deal with this question you should draw a free body diagram understanding that the weight has a velocity given by energy conservation and that implies a centrifical acceleration. – dmckee♦ Oct 7 '12 at 1:24

closed as too localized by dmckee♦ Oct 7 '12 at 1:20

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