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What is the value of linear velocity, if...

What is the value of linear velocity, if `vecomega=3hati-4hatj+hatk` and `vecr=5hati-6hatj+6hatk`?

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D

(d ) Velocity `v=omegaxxr|underset(5" "-6" "6)overset(hati" "hatj" "hatk)(3""-4" "1)|=-18hati -13hatj+2hatk`
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