Your grandfather clock's pendulum has a length of 0.9930m. If the clock loses 26 s per day, how shou

[@mikebisset9054]

This answer is wrong because frequency (cycles/day) is mistaken for period. length should be shorter, not longer.

[@elirivas1443]

mine only accepted my answer if i made it negative

[@cristinacortes9103]

You are a lifesaver, thank you, your videos help me all the time

[@TheAnswerKey]

Glad I could help!

[@err_4O4]

You say T1 = 2pi*sqrt(L1/g) = 86374, but the middle equation gives T1 is approximately 2. To be correct, if n = number of cycles per day, and T1,T2 are the periods of the pendulum, then t = total number of seconds = nT. So t1 = nT1 = 86374 = n * 2pi*sqrt(L1/g), t2 = nT2... and so on. And dividing them would cancel the n. You've equated 2 different equations but came out with the right answer due to the properties of this particular problem. Always respect the equal sign.