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What is the value of linear veloctity, i...

What is the value of linear veloctity, if `vecomega =hati-hatj+hatk` and `vecr=hati+2hatj+3hatk`

A

`hat(i)+hat(j)+hat(k)`

B

`-hat(i)-hat(j)-hat(k)`

C

`vec(0)`

D

`-3hat(i)-3hat(j)-3hat(k)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Sigmahat(i)xx(hat(i)xxhat(j))=Sigmahat(i)(hat(i).hat(j))-hat(j)(hat(i).hat(i))=-Sigmahat(j)=-(hat(i)+hat(j)+hat(k))`
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