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[" 0.9"[" 1ball strikes a horizumital fl...

[" 0.9"[" 1ball strikes a horizumital floor is "45^(@)~ &~ 25%" of is "KF" is lost in collision Find the coefficient of "],[" restitution."],[[" (1) "(1)/(2)," (2) "(1)/(sqrt(2))," (3) "(1)/(2sqrt(2))," (4) "(1)/(4)]]]

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