Compute all parts of given problemproblem a pendulum of, Ask an Expert

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Compute all parts of given problem:

Problem: A pendulum of length L and mass M is released from rest at an angle theta from the equilibrium position. Neglect air friction.

Part A: Calculate the velocity of the pendulum when the angle is zero. Express your result in terms of M, L and theta.

Part B: Suppose theta is 60 degrees and L is 1 meter. Suppose the velocity of the pendulum when the angle is zero is 1 m/s. Calculate the work done by air friction.

I need help to calculate the velocity of the pendulum when the angle is zero.

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