Answer:
f = 0.365 Hz
Step-by-step explanation:
The angular velocity of a simple pendulum is
w =
angular velocity and frequency are related
w = 2π f
we substitute
2π f =
Let's find the initial length of the pendulum
L =
L₀ =
L₀ = 0.6206 m
Indicates that the length of the chord triples
L = 3 L₀
L = 3 0.6206
L = 1.8618 m
let's find the frequency
f =
f = 0.365 Hz