A time-keeping pendulum has a length of 25.0cm on Earth where g=9.8m s−2. The same pendulum clock is to be used on the Moon where g=1.63m s−2.
a. (a) Calculate the time period of the pendulum on Earth.
b. (b) Determine the length that the pendulum must have on the Moon so that its time period remains unchanged. Give the answer in metres.