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Find the scalar and vector projection of veca on vecb. veca = hati+hatj,vecb = hatj+hatk

Answer»

SOLUTION :Scalar PROJECTION of `veca` on `vecb`
= `(veca.vecb)/|vecb| = ((hati+hatj).(hatj+hatk))/_hatj+hatk| = 1/sqrt2`
Vector projection of `veca` on `vecb`
= `((veca.vecb)/|vecb|) vecb/|vecb| = 1/sqrt2 (hatj+hatk)/sqrt2 = hatj+hatk/2`


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