Question

A student performs this experiment and measures the bar to have a mass of 150g and length of 36cm. What is the moment of inertia of the bar?

Answer 1

The moment of inertia of the bar is
`45*10^(-4)\ kg-m^2`

Step-by-step explanation:

Given that,

mass of bar = 150 g

Length l = 36 cm

We need to calculate the moment of inertia of the bar

Using formula of moment inertia

`I=(1)/(12)Ml^2`

Where,

M = mass of the bar

L = length of the bar

Put the value into the formula

`I=(1)/(12)*150*10^-3*36*10^(-2)`

`I=45*10^(-4)\ kg-m^2`

Hence, The moment of inertia of the bar is
`45*10^(-4)\ kg-m^2`