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The work done by the force vec( F ) = 6 ...

The work done by the force `vec( F ) = 6 hat(i) + 2 hat(j)` N in displacing an object from` vec( r_(1)) = 3 hat(i) + 8 hat( j)` to `vec( r_(2)) = 5 hat( i) - 4 hat(j)` m , is

A

12 J

B

`-36 J`

C

36J

D

`-12J`

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The correct Answer is:
D
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