What is the period of a simple pendulum 54 cm long on the Earth? Express your answer using two significant figures. If there is no answer, enter none.

Question

What is the period of a simple pendulum 54 cmcm long on the Earth?

Express your answer using two significant figures. If there is no answer, enter none.

Answer 1

If this is a simple (mathematical pendulum), then for the period T we use the formula

T = 2π√(l/g),

where π = 3.14,

l - length of the pendulum in m

g = 9.81 m/s² - acceleration due to gravity.

Now let's put all this value in the formula for the period. We will get:

T = 2·3.14·√(0.54 m / 9.81 m/s²) = 0.23 s

The answer: 0.23 s