The image above represents period.

To compute for period, two essential parameters are needed and these parameters are **length (l) **and **acceleration due to gravity (g).**

The formula for calculating period:

T = 2π(√(^{l} / _{g}))

Where;

T = Period

l = Length

g = Acceleration due to gravity

Let’s solve an example;

Find the period when the length is 4 and the acceleration due to gravity is 9.8.

This implies that;

l = Length = 4

g = Acceleration due to gravity = 9.8

T = 2π(√(^{l} / _{g}))

T = 2π(√(^{4} / _{9.8}))

T = 2π(√(0.408))

T = 2π(0.6388)

T = 6.28 x 0.6388

T = 4.014

Therefore, the **period **is **4.014 s.**

**Calculating the Length when the Period and the Acceleration due to Gravity is Given.**

l = (^{T} / _{2π})^{2} x g

Where;

l = Length

T = Period

g = Acceleration due to gravity

Let’s solve an example;

Find the length when the period is 28 and the acceleration due to gravity is 9.8.

This implies that;

T = Period = 28

g = Acceleration due to gravity = 9.8

l = (^{T} / _{2π})^{2} x g

l = (^{28} / _{6.28})^{2} x 9.8

l = (4.458)^{2} x 9.8

l = 19.87 x 9.8

l = 194.7

Therefore, the **length **is **194.7.**

Continue reading How to Calculate and Solve for Period | Motion