scilearner Posted September 10, 2009 Share Posted September 10, 2009 ------> Boat going at 10m/s ------> Sea going at 5m/s What is boats speed relative to the sea. If I use vectors it would BS= BG+GB =15-5=10m/s But the answer must be five and BG=15m/s(A person in the ground would see the boat travelling at 15m/s) Where have I gone wrong? Link to comment Share on other sites More sharing options...
swansont Posted September 10, 2009 Share Posted September 10, 2009 "Boat going at 10m/s" is relative to what? Is that the speed the boat is going relative to the sea, or relative to the ground? Link to comment Share on other sites More sharing options...
insane_alien Posted September 10, 2009 Share Posted September 10, 2009 i'm going over this with him in the IRC. its relative to the ground. EDIT: resolved. Link to comment Share on other sites More sharing options...
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