A torque of `2.0xx10^(-4)Nm` is applied to produce an angular acceleration of `4"rad"s^(-2)` in a rotating body. What is the moment of inertia of the body?

Explanation

Here `tau=2.0xx10^(-4)Nm`
`alpha=4"rad"s^(-2),I=?`
Formula `=tau=I alpha`
Moment of inertia
`I=(tau)/(alpha)=(2.0xx10^(-4))/4`
`=0.5xx10^(-4)kgm^(2)`