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Shane Macguire Grade: upto college level
        Suppose a ⃗ is a vector of magnitude 4.5 unit due north. What is the vector (a) 3a ⃗  ,(b)-4b ⃗ ?
3 years ago

Answers : (1)

Deepak Patra
askIITians Faculty
474 Points
										Sol.  a ⃗ is a vector of magnitude 4.5 unit due north. 

(a) 3 |a ⃗ | = 3 x 4.5 = 13.5
3 a ⃗ is along north having magnitude 13.5 units.
-4 a ⃗ is a vector of magnitude 6 unit due south.
3 years ago
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