During an experiment a student records that 30 complete oscillations of a pendulum take

PHYSICS · Multi-part · AP · Physics C: Mechanics · Oscillations · Oscillations

Problem

During an experiment a student records that 30 complete oscillations of a pendulum take 39.6 s39.6\,\text{s}. Take g=9.8 m s−2g = 9.8\,\text{m}\,\text{s}^{-2}. (i) Find the time period of the pendulum. (ii) Calculate the length of the pendulum corresponding to this period. (iii) Express your answer from part (ii) in centimetres, correct to the nearest millimetre.

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