Re: Bearing / trigonometry

Quote:

Originally Posted by

**earboth** 1. Draw a sketch defining a coordinate system.

2. The position of the ship at 10:04 is (-5.2, 0). The position of the ship at 10:40 is (0, 9.7798). Calculate the distance traveled during these 36 minutes to get the speed of the ship in

.

3. Calculate the distance traveled during the time from 10:04 to 11:10. With this distance and the known angle you can determine the position of the ship.

4. Use the Cosine law to determine the position where radio contact isn't possible.

hi sorry to bring up an old thread but i got this exact same question.

i was wondering if someone could explain in a bit more detail, i don't really understand earboth's response. (for example where did the 9.7798 come from? and how you use the distance between 10:04 to 11:10 to find the bearing? (Worried))

many thanks.