A force 
where K is a positive constant, acts on a particle moving in the x-y plane. Starting from the origin, the particle is taken along the positive x-axis to the point (a,0) and then parallel to the y-axis to the point (a, a). The total work done by the force 
on the particle is
Text Solution
Verified by ExpertsThe correct answer is:
C
dW= 
. 
where 
= 
+ 
And 
= – K ( 
+ 
)
dW = – K (ydx + xdy) = – K d (xy)
W = 
= – K 
= – K [xy] 
W = – Ka 2
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