Comments on: Selecting The Destination For Boat Travel http://www.cruisevacationsinfo.com/cheapcruisedeals/selecting-the-destination-for-boat-travel/ Fantastic Cruise Vacations Sun, 18 Apr 2010 15:49:59 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Zippitydoodah http://www.cruisevacationsinfo.com/cheapcruisedeals/selecting-the-destination-for-boat-travel/comment-page-1/#comment-3243 Zippitydoodah Tue, 16 Mar 2010 17:03:59 +0000 http://www.cruisevacationsinfo.com/cheapcruisedeals/selecting-the-destination-for-boat-travel/#comment-3243 d. move the vector::: A vector is a magnitude and direction. As long as you don't change its magnitude or direction, it is still the same vector. So, as long as you move the WHOLE vector without twisting it, it is the same vector. It has no defined 'origin'. You know the velocity north. The velocity west must exactly cancel the flow of the stream. Vwest/Vnorth=tan(62deg) Vcurrent=5m/s*tan(62deg)=9.4m/s Total speed is just Sqrt(Vwest^2+Vnorth^2)) or Vnorth/cos(62deg) Vtotal=10.65m/s The ship now needs to move 500km south AND 180km East. The direction is then Arctan(500km/180km) west of south.. 70.2 degrees west of south or 19.8 degrees south of west<br><b>References : </b><br> d. move the vector::: A vector is a magnitude and direction. As long as you don’t change its magnitude or direction, it is still the same vector. So, as long as you move the WHOLE vector without twisting it, it is the same vector. It has no defined ‘origin’.

You know the velocity north. The velocity west must exactly cancel the flow of the stream. Vwest/Vnorth=tan(62deg)
Vcurrent=5m/s*tan(62deg)=9.4m/s

Total speed is just Sqrt(Vwest^2+Vnorth^2)) or Vnorth/cos(62deg)
Vtotal=10.65m/s

The ship now needs to move 500km south AND 180km East. The direction is then Arctan(500km/180km) west of south..
70.2 degrees west of south or 19.8 degrees south of west
References :

]]> By: sportqt0702 http://www.cruisevacationsinfo.com/cheapcruisedeals/selecting-the-destination-for-boat-travel/comment-page-1/#comment-3242 sportqt0702 Tue, 16 Mar 2010 12:01:19 +0000 http://www.cruisevacationsinfo.com/cheapcruisedeals/selecting-the-destination-for-boat-travel/#comment-3242 <b>Physics help!?</b><br>Which of the following actions is permissible when you are graphically adding one vector to another? (Select all that apply.) a. rotate the vector b. none of these c. change the vector's length d. move the vector A river flows toward the east. Because of your knowledge of physics, you head your boat 62° west of north and have a velocity of 5.0 m/s due north relative to the shore. (a) What is the velocity of the current? _______m/s (b) What is your speed relative to the water? __________m/s A ship leaves its home port expecting to travel to a port 500 km due south. Before it moves even 1 km, a severe storm blows it 180 km due east. In what direction must it travel to reach its destination? ______° (south of west) Physics help!?
Which of the following actions is permissible when you are graphically adding one vector to another? (Select all that apply.)
a. rotate the vector
b. none of these
c. change the vector’s length
d. move the vector

A river flows toward the east. Because of your knowledge of physics, you head your boat 62° west of north and have a velocity of 5.0 m/s due north relative to the shore.
(a) What is the velocity of the current?
_______m/s
(b) What is your speed relative to the water?
__________m/s

A ship leaves its home port expecting to travel to a port 500 km due south. Before it moves even 1 km, a severe storm blows it 180 km due east. In what direction must it travel to reach its destination?
______° (south of west)

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