A dart having mass m moving horizontally imbeds in the target of mass M hanged by a wire of length l and mass u.
i) Determine the initial speed of the dart v if instantly after impact the target recoils with the angular speed w?
ii) Calculate v from part a) if m = 30g, M = 1kg, u = 40g, l = 3m and w = 0.15 rad/s