The oscillation time of a pendulum [[$ t $]] (= the time it takes to complete an oscillation back and forth) can be calculated with the following formula:
[[$ t = 2 \pi \sqrt {\displaystyle\frac {l} {g}} $]],

where [[$ l $]] is the length of the pendulum wire and [[$ g = 9.81 $]] m/s[[$ ^2 $]]. Calculate the oscillation time when the length of the pendulum wire is

a) 1 m.

b) 5 m.

c) 10 m.

Take a picture of your solution and submit it to the folder.

Answers:
a) The oscillation time is s.

b) The oscillation time is s.

c) The oscillation time is s.