By what factor should the length of the pendulum of a clock be changed if you want it to run 2 times faster?

The period of a simple pendulum is given by .

Here is the period, length of the pendulum and acceleration due to gravity. When the pendulum runs 2 times faster, the period gets halved. That is

. The new length of the pendulum is .

That is the length of the pendulum decreases by a factor of 4.

as technology advances, new experiments often expose problems in accepted theories. c

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-lavira: )

f=ma newton's second law 7x8=56n