Answer:
I. Time period = 0.2 seconds.
II. Frequency = 5 Hertz.
Step-by-step explanation:
Given the following data;
Time, t = 5 seconds.
Number of oscillation, n = 25 times
I. To find the time period;
Substituting into the equation, we have;
Time period = 0.2 seconds.
II. To find frequency;
Substituting into the equation, we have;
Frequency = 5 Hertz.
Therefore, the time period and frequency of the pendulum is 0.2 seconds and 5 Hertz respectively.