What is the period? I know it is 8s/10 times but I am not convinced. I think it is 10 times / 8 s = 1.25 times/s . Can some one explain to me why? thank youA pendulum swings back and forth 10 times in 8s. It swings through a total horizontal distance of 40cm.
Also when you sketch the graph, is the range from -20cm to 20cm or 0cm to 40 cm. I think it is 0cm to 40 cm because distance can not be negative, however in the text book in is the other range.