the question is:
The time, T, in seconds, that a pendulum takes to do a complete oscillation is given by the
T = 2PI
where l is the length of the pendulum, in metres, and g is the acceleration due to gravity.
Take the value of g to be 9.807 m/s2.
In St. Isaac’s cathedral in St. Petersburg there is a pendulum of length 94 m.
18 (a) (i) Calculate the value of T for this pendulum.
Give all the figures in your calculator display.
Give your answer as a decimal.
Can somebody explain to me how to do this,i already know the answer but i want to know how to do it.(This is a past GCSE)Thanks.