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Grade 11General Physics

At what angle ahould the two unit vectors be inclined so that their resultant is also a unit vector

Profile image of manu
10 Years agoGrade 11
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1 Answer

Profile image of Charchit Tailong
10 Years ago
cosθ = (u⃗ · v⃗) / (||u⃗||||v ⃗||)
u⃗ · v⃗ is the dot product (scalar product) of the two vectors,
||u⃗||= √(1 + 1) = √(2) = ||v⃗||= √(1+ 1) = √(2) = 2.
answer =0 degree