Question: The angular displacement of a simple pendulum is given by ( t ) = mcos ( t + ) . If the pendulum is 4

The angular displacement of a simple pendulum is given by (t)= mcos (t +). If the pendulum is 45 cm in length, and is given an angular speed d/dt =3.4 rad/s at time t =0, when it is hanging vertically, what is m?

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