A force F = 5 i ^ + 3 j ^ N is applied over a particle which displaces it from its origin to the point r = 2 i ^ - 1 j ^ m . The work done on the particle is

Question

A force F = 5 i ^ + 3 j ^ N is applied over a particle which displaces it from its origin to the point r = 2 i ^ - 1 j ^ m . The work done on the particle is, - 7 J, + 13 J, + 7 J, + 11 J

MARKS App · Accepted Answer

W = F → . s → W = 5 i ^ + 3 j ^ . 2 i ^ - 2 j ^ W = 10 - 3 = 7 J

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