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The angle between the two vectors (¢)= [110-20]° = 90°
Resultant vector R = [|a|² + |b|² +2a.b.cos¢]^½
= (3² +4² + 0)^½ =5 units.
[since,,, cos 90° =0]
Hope this is ur required answer
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Resultant vector R = [|a|² + |b|² +2a.b.cos¢]^½
= (3² +4² + 0)^½ =5 units.
[since,,, cos 90° =0]
Hope this is ur required answer
Proud to help you
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