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A grandfather clock is "losing" time because its pendulum moves too slowly. Assume that the pendulum is a massive bob at the end of a string.A grandfather clock is "losing" time because its pendulum moves too slowly. Assume that the pendulum is a massive bob at the end of a string.The motion of this pendulum can be sped up by:- shortening the string.- lengthening the string.- increasing the mass of the bob.- decreasing the mass of the bob.

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Answer:

shortening the string

Explanation:

L = Length of pendulum

g = Acceleration due to gravity = 9.81 m/s²

Time period of a pendulum is given by

[tex]T=2\pi \sqrt{\dfrac{L}{g}}[/tex]

[tex]T\propto \sqrt{L}[/tex]

It can be seen that time period is proportional to the length of the pendulum.

The time period is getting longer.

So, if the length of the string is reduced this will speed up the time period.

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