# Physics isn't fun without calculus!

Classical Mechanics Level pending

The figure below shows a simple pendulum formed of a rod of negligible mass suspending at its lower end a particle (P).The pendulum is shifted by an angle $$\theta$$ from its stable equilibrium position in the vertical plane. Friction is not neglected.Assume that at the end of each oscillation of the system, the amplitude ($$\theta$$) is divided by the same factor $$b=1.025$$. Determine the number of the oscillations described by the oscillator during the time needed by the amplitude to drop from $${ 10 }^{ \circ }$$ to $${ 6.9 }^{ \circ }$$.

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