A pendulum completes two oscillations in 5s. What is its time period? If `g = 9.8 "ms"^(-2)`, find its length.

Explanation

To solve the problem step by step, we will first find the time period of the pendulum and then use that to calculate its length.

### Step 1: Calculate the Time Period
The time period (T) is defined as the time taken for one complete oscillation. We know that the pendulum completes 2 oscillations in 5 seconds.

To find the time period, we can use the formula:
\[ T = \frac{\text{Total Time}}{\text{Number of Oscillations}} \]

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