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[" A particle is moving in a circle "],[...

[" A particle is moving in a circle "],[" of radius "R=(16)/(pi)m" with "],[" constant speed "4m/s" as "],[" shown.The average "],[" acceleration of the particle as "],[" it moves from "P" to "Q" ,in "m/s^(2)" is "],[qquad [" " "],[qquad R]]

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