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A body constrained to move along the z-a...

A body constrained to move along the z-axis of a coordinate system is subject to a constant force F is given by
`F=-hat(i) + 2hat(j)+3hat(k)` N
Where, `hat(i), hat(j), hat(k)` are unit vectors along the `x-,y-` and z axis of the system respectively. What is the work done by this force in moving the body a distance of 4m along the z-axis?

A

12 J

B

13 J

C

10 J

D

9 J

Text Solution

Verified by Experts

The correct Answer is:
A
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