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Thursday, April 20, 2006 

Magnitude and Direction


Here is my scribe now. Sorry for the delay. This was the work sheet we worked on Wednesday.
And since Mr. K wasn't in class to give us the answer here is what i got.

Measure vector V shown Below using ruler and protractor.

1. What is the magnitude of the vector represented by the arrow? Show how you arrive at your answer. Be sure to include units with your answer.

Ans. Since we used this scale , 1 cm = 2.5 km/h, we have to multiply 2.5 to 10 cm (lenght of the arrow mesured with a ruler in cm).

lenght(cm) x Actual magnitude = Reality magnitude
10 x 2.5 = 25
reality magnitude = 25 km/h

2. What is the direction of the vector? Write the answer in five different ways.

Bearing of 250 Degrees
70 degree south of west
west 70 degree south
30 degree west of south
south 30 degree west

That all folks. If my last answer is wrong please dont hesitate to post the right one.

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