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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
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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NotTimBest 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

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

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

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

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

dumbcowBest 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

NotTimBest 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

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

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

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

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

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

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

dumbcowBest 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

NotTimBest 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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