Question

what is the resultant of two vectors 5 units
and 8 units
acting an
angle of
45 to each other?
​

Answer 1

Answer:

$\sqrt{89+40\sqrt{2} }$

Explanation:

resultant vector= $\sqrt{5^2+8^2+2*5*8*cos45}$      ( formula of resultant vector)

*$\sqrt{25+64+80*1/\sqrt{2 }$

$\sqrt{89+40\sqrt{2} }$

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