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Calculate the linear acceleration of a p...

Calculate the linear acceleration of a particle of a particle moving in a circle of radius 0.4 m at the instant when its angular velocity is 2 rad `s^(-1)` and its angular acceleration is 5 rad `s^(-2)`.

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The correct Answer is:
`[2.6 ms^(-2), 38^(@) 40' " with "a_(t)]`
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