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The string of a pendulum is 2.0m long. T...

The string of a pendulum is `2.0m` long. The bob is pulled sideways so that the string becomes horizontal and then the bob is released. What is the speed with which the bob arrives at the lowest point ? Assume theat `10%` of initial energy is dissipated against air resistance. Take `g=10m//s^(2)`

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