Suppose You Want to Set Up a Simple Pendulum with a Period

Essay

Suppose you want to set up a simple pendulum with a period of 2.50 s. How long should it be
(a) on Earth, at a location where $g = 9.80 \mathrm {~m} / \mathrm { s } 2 ?$
(b) on a planet where g is 5.00 times what it is on Earth?