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Consider two Vectors vec(F)(1)= 2hat(i)+...

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

Text Solution

Verified by Experts

The correct Answer is:
A
`vecF_(1).vec(F)_(2)= (2hat(j)+5hat(k))(3hat(j)+4hat(k))`
`= 6+20= 20+6= 26`
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