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vec(a)=5 units due South West vec(b)=5...

`vec(a)=5` units due South West
`vec(b)=5` units due `53^(@)` North of East.
`vec(c)=10` units due `37^@` South of East.
Then which of the following is incorrect.

A

`vec(a)+vec(b)=-2hat(i)-hat(j)`

B

`vec(a).vec(b)=-(35)/(sqrt2)`

C

`vec(b).vec(c)=0`

D

`vec(b)+vec(c)=11hat(i)-2hat(j)`

Text Solution

Verified by Experts

The correct Answer is:
A

`vec(a)=(5)/(sqrt2)(hat(i)+hat(j))`
`vec(b)=3hat(i)+4hat(j)`
`vec(c)=8hat(i)-6hat(j)`
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