A force (3hati+4hatj) newton acts on a b...

A force `(3hati+4hatj)` newton acts on a boby and displaces it by `(3hati+4hatj)` metre. The work done by the force is

A

10 J

B

12 J

C

16 J

D

25 J

Text Solution

Verified by Experts

The correct Answer is:

D

`W=vec(F).vec(s)=(3hat(i)+4hat(j)).(3hat(i)+4hat(j))=9+16=25 J`

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