A simple pendulum, has a period of 5.77 seconds. When the pendulum is shortened by 3 m, the period is 4.60 seconds. Calculate the new length of the pendulum
a
5.23 m
b
6.42 m
c
4.87 m
d
7.26 m
Explanation
Correct Option
aVideo Explanation
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Femipupo
2 years ago
The answer iis option b not a pls check again and resolve
We can use the formula for the period of a simple pendulum
[ T = 2\pi\sqrt{\frac{L}{g}} ]
For the original pendulum: [ T_1 = 2\pi\sqrt{\frac{L}{g}} ]
For the shortened pendulum: [ T_2 = 2\pi\sqrt{\frac{L - \Delta L}{g}} ]
Pls cross check
