Question

if the length of the pendulum is decreased by 2%, find the gain or loss in time per day?​

Answer 1

Answer:

$t \alpha \sqrt{l } = > \frac{t}{t } = \frac{1}{2} \frac{l}{l } = \frac{0.02}{2} = 0.01$

lose of the time per day is=0.01×24×60×60=864sec

Answer 2

Answer:

refers to the attachment......