1.A pendulum which has a period of 1s in London, where g=9.8118m s-2, is taken to Paris where it is found to lose 20s per day. What is the value of g in Paris? 2. Relevant equations are in the image attached I like this question but can't figure it out. I have the length of the pendulum correct, I think. I know that there are 86400s in one day; minus 20s for the pendulum period in Paris. Can't figure it out. Any clues please?