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NotTim
 3 years ago
A boat is travelling at 18 knots on a heading of 234 degrees. The current is 8 knots, flowing from a bearing of 124 degrees. Determine the resultant velocity of the boat.
NotTim
 3 years ago
A boat is travelling at 18 knots on a heading of 234 degrees. The current is 8 knots, flowing from a bearing of 124 degrees. Determine the resultant velocity of the boat.

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NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0I got the speed, its 22 knots. But I didn't get the angle.

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0The correct angle is a bearing of 254. I got 19.9 degrees.

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0to get such an angle, i used sin^1(8sin110/22.056)=Angle

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0to get my speed, c2=8^21822(8)(18)cos110

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0um...anyone got a response?

dumbcow
 3 years ago
Best ResponseYou've already chosen the best response.1everything looks correct, again the 19.9 refers to the angle inside the triangle the new bearing will be 234 + 19.9 = 253.9 which is slighly different from answer given ? not sure why

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0this txtbook rounds the answers. How do I know whether to add or subtract from the current bearing on which the angle/point lies?

dumbcow
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1333624601334:dw use the diagram

dumbcow
 3 years ago
Best ResponseYou've already chosen the best response.1if the current was flowing the other direction then you would have subtracted

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1333635586620:dw wait...thats not a bearing...

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0unless I draw my diagram wrong.

dumbcow
 3 years ago
Best ResponseYou've already chosen the best response.1oh are bearings supposed to go clockwise? sorry sometimes i forget navigational convention

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0bearings start from the top and go clockwise, yeah

dumbcow
 3 years ago
Best ResponseYou've already chosen the best response.1haha oh well but the math will still work out the same because its all relative to your starting position :)

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0ok. thank you very much! you helped me just in time!
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