question_answer

A force \[F=(5\hat{i}+3\hat{j})\] newton is applied over a particle which displaces it from its origin to the point \[r=(2\hat{i}-1\hat{j})\] metres. The work done on the particle is           [MP PMT 1995; RPET 2003]

A)             ? 7 joules

B)               + 13 joules

C)             + 7 joules

D)               + 11 joules