A particle performing U-C-M- with radius 3 m and linear speed 9 m-s- If r- is a radius vector- its centripetal acceleration a- is-

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Uniform Circular Motion

A particle pe...

Question

A particle performing $U . C . M .$ with radius $3 m$ and linear speed $9 m / s$ . If $\to r$ is a radius vector, its centripetal acceleration $\to a$ is:

\to a = - 9 \to r

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\to a = 81 \to r

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\to a = - 27 \to r

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\to a = 3 \to r

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