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+1 vote
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in Physics by (82.2k points)
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Consider two Vectors `vec(F)_(1)= 2hat(i)+5hat(k)` and `vec(F)_(2)= 3hat(j)+4hat(k)`. The magnitude of the scalar product of these Vector is
A. 20
B. 23
C. `5sqrt(33)`
D. 26

1 Answer

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Best answer
Correct Answer - A
`vecF_(1).vec(F)_(2)= (2hat(j)+5hat(k))(3hat(j)+4hat(k))`
`= 6+20= 20+6= 26`

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