document.write( "Question 1204112: Word Problem Create a mch Find the matart vector in each problem and direction\r
\n" ); document.write( "\n" ); document.write( "1. An airplane is flying 340 km/hr at 12° North of Pan. The wind is blowing 40 km at 34° South of East What is the plane actual velocity?
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Algebra.Com's Answer #848012 by asinus(45)\"\" \"About 
You can put this solution on YOUR website!
**1. Define the Coordinate System**\r
\n" ); document.write( "\n" ); document.write( "* Let's define our coordinate system with:
\n" ); document.write( " * **East as the positive x-axis**
\n" ); document.write( " * **North as the positive y-axis**\r
\n" ); document.write( "\n" ); document.write( "**2. Resolve the Velocities into Components**\r
\n" ); document.write( "\n" ); document.write( "* **Plane's Velocity:**
\n" ); document.write( " * Magnitude: 340 km/hr
\n" ); document.write( " * Direction: 12° North of East
\n" ); document.write( " * x-component: 340 * cos(12°) = 332.54 km/hr (East)
\n" ); document.write( " * y-component: 340 * sin(12°) = 70.43 km/hr (North)\r
\n" ); document.write( "\n" ); document.write( "* **Wind Velocity:**
\n" ); document.write( " * Magnitude: 40 km/hr
\n" ); document.write( " * Direction: 34° South of East
\n" ); document.write( " * x-component: 40 * cos(34°) = 33.14 km/hr (East)
\n" ); document.write( " * y-component: -40 * sin(34°) = -22.36 km/hr (South)\r
\n" ); document.write( "\n" ); document.write( "**3. Calculate the Resultant Velocity**\r
\n" ); document.write( "\n" ); document.write( "* **Resultant x-component:** 332.54 km/hr (plane) + 33.14 km/hr (wind) = 365.68 km/hr
\n" ); document.write( "* **Resultant y-component:** 70.43 km/hr (plane) - 22.36 km/hr (wind) = 48.07 km/hr\r
\n" ); document.write( "\n" ); document.write( "**4. Calculate the Magnitude of the Resultant Velocity**\r
\n" ); document.write( "\n" ); document.write( "* Magnitude = √(x-component² + y-component²)
\n" ); document.write( "* Magnitude = √(365.68² + 48.07²)
\n" ); document.write( "* Magnitude ≈ 369.45 km/hr\r
\n" ); document.write( "\n" ); document.write( "**5. Calculate the Direction of the Resultant Velocity**\r
\n" ); document.write( "\n" ); document.write( "* Direction = arctan(y-component / x-component)
\n" ); document.write( "* Direction = arctan(48.07 / 365.68)
\n" ); document.write( "* Direction ≈ 7.48° North of East\r
\n" ); document.write( "\n" ); document.write( "**Therefore:**\r
\n" ); document.write( "\n" ); document.write( "* **Magnitude of the plane's actual velocity:** 369.45 km/hr
\n" ); document.write( "* **Direction of the plane's actual velocity:** 7.48° North of East\r
\n" ); document.write( "\n" ); document.write( "**In summary:**\r
\n" ); document.write( "\n" ); document.write( "The plane's actual velocity is 369.45 km/hr at a direction of 7.48° North of East, taking into account the effect of the wind.
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