Respuesta :
A pendulum's time period is the amount of time it takes to complete one oscillation. The pendulum with a length of 3.98 m and a length of 99.4 cm will have a time period of 4 and 1.99 seconds, respectively.
What is the definition of a simple pendulum?
A simple pendulum is a device with a point mass hanging from fixed support and connected to a light inextensible thread.
The vertical line going through the fixed support represents the mean position of a basic pendulum.
h = vertical distance from the point of suspension
L = length of the simple pendulum
The time period of the simple penduum is given by
[tex]\rm T = 2\pi\sqrt{\frac{l}{g} }[/tex]
For l = 3.98 m
[tex]\rm T = 2\times 3.14 \sqrt{\frac{3.98}{9.81} }[/tex]
T = 4 second
For l = 99.4 cm = 0.994 m
[tex]\rm T = 2\times 3.14 \sqrt{\frac{0.994}{9.81} }[/tex]
T = 1.99 second
The time period of the pendulum having 3.98 m and 99.4 cm in length will be 4 and 1.99 seconds respectively.
To learn more about the simple pendulum refers to the link;
https://brainly.com/question/14759840
