Forces acting on a particle have magnitu...

Forces acting on a particle have magnitude 5,3 and 1 unit and act in the direction of the vectors `6 hati + 2 hatj + 3 hatk , 3 hati , - 2 hatj + 6 hatk and 2 hati - 3 hatj - 6 hatk` respectively. They remain constant while the particle is displaced from the point `A (2, -1,-3)` to `B (5,-1,1)` The work done is :

A

11 unit

B

33 unit

C

10 unit

D

20 unit

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The correct Answer is:

B

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