HilaryDuffStalker/Lover
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- Feb 25, 2012
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A ship heads due south with the current flowing northwest. Two hours later, the ship is 20 miles in the direction 30 degrees west of south from the original starting point. The goal is to find the speed of the ship with no current and also find the rate of current.
a) draw the vector showing the position of the ship after 2 hours. (Hint: place the origin at the ship's starting point.)
b) draw the vector representing the current. (Note: we must assume the current is the same at each point in the water, so you could draw this vector anywhere. Which point would be most advantageous for working this problem?)
c) draw in a third vector to make a triangle with two vectors from (a) and (b). In what compass direction is this third vector going? What is the length of this vector? What does it represent in the problem?
d) what measurements of the triangle gives the rate of current?
e) ships speed with no current:__________
rate of the current:________
Plz show all work so I can understand how to do this problem. Btw I'm in pre-calculus
thx for ur help
a) draw the vector showing the position of the ship after 2 hours. (Hint: place the origin at the ship's starting point.)
b) draw the vector representing the current. (Note: we must assume the current is the same at each point in the water, so you could draw this vector anywhere. Which point would be most advantageous for working this problem?)
c) draw in a third vector to make a triangle with two vectors from (a) and (b). In what compass direction is this third vector going? What is the length of this vector? What does it represent in the problem?
d) what measurements of the triangle gives the rate of current?
e) ships speed with no current:__________
rate of the current:________
Plz show all work so I can understand how to do this problem. Btw I'm in pre-calculus
thx for ur help