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[" A ball of mass "m" is thrown upward w...

[" A ball of mass "m" is thrown upward with a velocity "],[" v.If air exerts an average resisting force "F" ,the "],[" velocity with which the ball returns back to the "],[" thrower is: "],[[" (A) "v sqrt((mg)/(mg+F))," (B) "v sqrt((F)/(mg+F))],[" (C) "V sqrt((mg-F)/(mg+F))," (D) None of these "]]

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