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- IIT JAM
- Mathematics (MA)
41. evaluate f.dr where f = (x-3y) i + (y-2x)i and c is the closed curve in the xy plane, z =2 cos t, jc y 3 sint fromt=0 to t= 277. ans. 6, if c is traversed i
41. Evaluate F.dr where F = (x-3y) i + (y-2x)i and C is the closed curve in the xy plane, z =2 cos t, Jc y 3 sint fromt=0 to t= 277. Ans. 6, if C is traversed in the positive (counterclockwise) direction. 42. If T is a unit tangent vector to the curve C, r=r(u), show that the work done in moving a particle in a force field F along C is given by F.T ds where s is the arc length. 43. If F = (2x +y ")i + (3y-4x)j, evaluate F.dr around the triangle C of Figure 1, (a) in the indicated direction, (b) opposite to the indicated direction. Ans. (a) -14/3 (b) 14/3
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Priyadarshan Choursiya![best-answer]()
hello. can you please send this question by click photo, because when we see the question some unnecessary words are also print. and we are not able to understand question clearly. for you convinced I attached screenshot what we see. if you read this you find that some place you got stuck with it.