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  • Two vectors  and <img alt="\overrightarrow{b}" src="https://learn.careers360.

Two vectors \overrightarrow{a} and \overrightarrow{b} with magnitude will have minimum \overrightarrow{a}\cdot \overrightarrow{b}, when they are inclined at:

Option: 1

00


Option: 2

300


Option: 3

900


Option: 4

1800


Answers (1)

best_answer

As we learn

Minimum value of Vector a dot Vector b -

-|\vec{a}| |\vec{b}|

-

 

 \vec{a}\cdot \vec{b}=\left | \vec{a} \right |\left | \vec{b} \right | cos \Theta

R.H.S will minimum when cos \Theta=-1

i.e. when \Theta=180^{0}

 

Posted by

seema garhwal

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