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Q11 A body constrained to move along the z-axis of a coordinate system is subject to a constant force F given by
where 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 4 m along the z-axis?
Answers (1)
Force is given to be :
And the displacement is :
Thus the work done is given by :
or
or
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