Question

The time period of a simple pendulum of length 80 cm on the earth is

Answer 1

Hello Mate, here is the your solution ÷

As,
$t \: = 2 \times \pi \sqrt{(.8 \div 9.8)}$
Answer - 1.79 s

Answer 2

Given :

Length of pendulum , L = 80 cm = 0.8 m .

To Find :

The time period of a simple pendulum .

Solution :

The time period of a simple pendulum of length L is given by :

$T=2\pi\sqrt{ \dfrac{L}{g}}$

Here ,  g is acceleration due to gravity i.e , $g=10\ m/s^2$ .

So ,

$T=2\pi\sqrt{ \dfrac{0.8}{10}}\ s\\\\T=1.78\ s$

Hence , this is the required solution .

Learn More :

Time period

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