Given that p vector+q vector=rvector and p+q=rthen angle between p vector & q vector
Answer (1)
2nd Oct, 2018
Magnitude Sum of Two vectors Vector P and Vector q is given by
r^2 =p^2+q^2+2pqcos($) __________________________(i)
here $ indicates angle between them.
We are given
r=p+q
so Squaring both the sides we get
r^2=p^2+q^2+2pq ______________________(ii)
From (i) and (ii) we can write
p^2+q^2+2pqcos($)=p^2+q^2+2pq
therefore 2pq=2pqcos($)
cos($)=1
therefore $=0
So angle between p vector and q vector is 0 degree.
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