Posted by **Emily** on Tuesday, September 4, 2012 at 8:30am.

A viking sails from his home port and travels east at 15km/hr.after 10 hours, the wind change and he is blown south west at 20km/hr for six hours.at his point wind drops, the ship is becalmed and doesnot move for the next ten hours.becoming tired of waiting,the viking order his crew to start rowing west at 10km/hr which they do for five very tiring hours before beaching the ship on a convenient island. calculate the average velocity and average speed of the ship from when its left port to when it was beached.

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