1.

Find the magnitude of the vector vec(PQ), its scalar components and the component vectors along the co-ordinate axes, if P and Q have the co-ordinates P(-1,30, Q(1,2)

Answer»

SOLUTION :`vec(PQ) = (1+1)hati+(2-3)HATJ = 2hati-hatj`
SCALAR components of `vec(PQ)` are `2hati, -hatj`.
MAGNITUDE of `vec(PQ) = |vec(PQ)| = sqrt5`.


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