Answer:
Explanation:
Number of oscillations in 100 s is 68.
time taken to complete one oscillation = 100 / 68 s = 1.47 s
Use the formula for the time period of an oscillating body
[tex]T = 2\pi \sqrt{\frac{L}{g}}[/tex]
[tex]T^{2} = 4\pi^{2} \frac{L}{g}}[/tex]
In this equation substitute the value of T amd L and then find the value of g.
