Question 19.17: A short pendulum oscillates with s.h.m. such that its accele...
A short pendulum oscillates with s.h.m. such that its acceleration a (in m s^{−2}) is related to its displacement x (in m) by the equation a = −300x. Determine the frequency of the oscillations.
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Angular frequency ω = 2πf so, in acceleration
equation, a = –ω²x = –4π²f²x
meaning 4π²f² = 300 s^{−2} , therefore
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