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NotTim
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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.
 2 years ago
 2 years ago
NotTim Group Title
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.
 2 years ago
 2 years ago

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

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

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

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

NotTim Group TitleBest ResponseYou've already chosen the best response.0
um...anyone got a response?
 2 years ago

dumbcow Group TitleBest ResponseYou've already chosen the best response.1
everything 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
 2 years ago

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

dumbcow Group TitleBest ResponseYou've already chosen the best response.1
dw:1333624601334:dw use the diagram
 2 years ago

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

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

NotTim Group TitleBest ResponseYou've already chosen the best response.0
unless I draw my diagram wrong.
 2 years ago

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

NotTim Group TitleBest ResponseYou've already chosen the best response.0
but it still works eh
 2 years ago

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

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

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