A particle completes a half revolution of a circular track whose radius is $r$ in time $t$. Find the displacement of the particle.

As given a particle completes a half revolution of a circular track whose radius is $r$ in time $t$.

The motion has been shown in the fig. below:

Here $AB$ is the displacement.

Therefore, displacement $AB=r+r=2r$

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Updated on: 10-Oct-2022

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