text: what is the acceleration due to gravity at its location? a simple pendulum with a length 1.50 m makes 38.7 oscillations in 180 s. what is the acceleration due to gravity at its location? (it is not located on earth!) we have the formulae for simple pendulum to be   t= 2*pie*(l/g)^1/2  therefore g= (4*(pie^2)*l)/t^2  g= 1281.4058  ms^(-2)  since time period for simple pendulum only depends on its length and g therefore location is not important.