Physics Waves And Oscillations Level: Misc Level

A uniform string of length 10.0 m and weight 0.35 N is attached to the ceiling.A weight of 1.00 kN hangs from its lower end. The lower end of the string is suddenly displaced horizontally. How long does it take the resulting wave pulse to travel to the upper end? [ Hint: Is the weight of the string negligible in comparison with that of the hanging mass?] ms