A ship leaves port A, and travels a distance of 60km due North, it then changes direction at B and travels a distance of 20km due East to a second port C.
a) Calculate the direct distance from A to C
b) Calculate the angle between due North and the line from A to C.
AS physics homework, I'm really stuck, need help quickly. Any useful help, will be appreciated.
2007-09-17 06:03:30 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
You didn't learn Pythagorean Theorem --or-- anything about trig, did you?
The direct distance is 63.25 km and the angle from due north is 18.43°. And no, I'm --not-- gonna show up and take your next test for you ☺
Doug
2007-09-17 06:28:01 · answer #1 · answered by doug_donaghue 7 · 0⤊ 0⤋
confident, this is triangulation. you're able to do it with 2 stations, yet 3 or greater is greater useful. There are distinctive waves, floor and deep, that holiday at distinctive speeds, so the kit must be state-of-the-paintings adequate to tell that's which, and be conscious the time properly. The profile of the wave helps to become attentive to it. Waves at distinctive depths have distinctive profiles. Years in the past at CalTech I observed a action picture taken of an extremely super field of grass for the time of a valley. A seismometer on the a approaches facet became on the digital camera, and you should work out the earthquake wave coming in direction of you like a wave on the sea. Very alluring, awe inspiring.
2016-11-14 16:56:12 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Draw a picture and then use Pythagorean Theorem a^2 + b^2 = c^2
For the angle use tan (angle) = x / y
2007-09-17 06:12:10 · answer #3 · answered by rscanner 6 · 0⤊ 0⤋
If you draw the directions then you will have a right angled triangle(albeit upside down) then the rest is basic maths.
2007-09-17 06:21:01 · answer #4 · answered by Antistupidquestions 4 · 0⤊ 0⤋