r1=4i+3j+8k , r2=2i+10j+5k write the expression for the displacement vector, r,

Question

r1=4i+3j+8k , r2=2i+10j+5k
write the expression for the displacement vector, r, givingthe displacement of particle 2 relative to particle 1. find themagnitude of r,(remember, in general, displacement of b withrespect to,or relative to, A, means the vector differencerb - ra).
write the expression for the displacement vector, r, givingthe displacement of particle 2 relative to particle 1. find themagnitude of r,(remember, in general, displacement of b withrespect to,or relative to, A, means the vector differencerb - ra).

Explanation / Answer

Given : .           r1=4i+3j+8k , r2=2i+10j+5k .        Displacement   (r) = r2 - r1 .                                     = (2i+10j+5k ) - (4i+3j+8k ) .                                      = - 2i + 7 j - 3 k . Magnitude is : .                     r    =    (-2)2 + 72 +(-3)2 .                          =   ----------   . Solve it . Hope this helps u!

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