"On earth, you have a pendulum of length L that oscillates with period T. Your friend lives on a planet where the acceleration of gravity is four times as big as it is on the earth. What should be the length of a pendulum on your friend s planet so that it also oscillates with the same period T

4L

Explanation:

Data provided in the question according to the question is as follows

Length = L

Gravity = G

For friend

Length = ?

Growth = 4G

Moreover,

Based on the above information ,

Now we have to apply the simple pendulum formula which is shown below:

Now equates these equations in both sides

So after solving this, the length of the pendulum is 4L

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