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[" (c) "v(B)-v(A)],[" 2.A ball strikes a...

[" (c) "v_(B)-v_(A)],[" 2.A ball strikes a horizontal floor at "45^(@).25%" of its "],[" kinetic energy is lost in collision.Find the coefficient of "],[" restitution."],[[" (a) "(1)/(2)," (b) "(1)/(sqrt(2))]]

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