The work done in moving an object from o...

The work done in moving an object from origin to a point whose position vector is `vecr = 3hati + 2hatj - 5hatk` by a force `vecF = 2hati - hatj - hatk` is

A

1 unit

B

9 unit

C

13 unit

D

60 unit

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The correct Answer is:

B

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