Questions
The angle between two vectors (i + j) and (j + k) is
a
30°
b
4s°
c
60°
d
90°
detailed solution
Correct option is C
cosθ=(i+j)⋅(j+k)|i+j||j+k|=12×2=12θ=60∘Talk to our academic expert!
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Three forces 9 N, 12 N and 15 N acting at a point are in equilibrium the angle between 9 N and 15 N is
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