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[" 12.A particle moves along a circle of...

[" 12.A particle moves along a circle of radius "((20)/(pi))m" with "],[" constant tangential acceleration.If the velocity of the "],[" particle is "80m/s" at the end of the second revolution "],[" after motion has begun,the tangential acceleration is: "],[[" (a) "640 pi m/s," (d) "160mm/s],[" (c) "40 pi m/s^(2)," (d) "40m/s^(2)]]

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A particle moves along a circle if radius (20 //pi) m with constant tangential acceleration. If the velocity of the particle is 80 m//s at the end of the second revolution after motion has begun the tangential acceleration is .

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