The two collars have the masses and initial velocities shown in the figure. The coefficient of restitution for the collision is e=0.5, and friction is negligible. a) Determine the velocity of the two collars after impact. b) If the time duration of the collision is 0.025 s, determine the average impact force. V₁ = 7 m/s V₂ = 5 m/s m₁ = 2 kg m₂ = 3 kg

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