A vec(F) = (5hat(i) +3hat(j) +2hat(k))Nis appliedover a particle which displaces it from its origin to the point vec(r ) = (2 hat(i) - hat(j))m. The work done on the particle in joule is ……….

A vec(F) = (5hat(i) +3hat(j) +2hat(k))Nis appliedover a particle which

1.	A vec(F) = (5hat(i) +3hat(j) +2hat(k))Nis appliedover a particle which displaces it from its origin to the point vec(r ) = (2 hat(i) - hat(j))m. The work done on the particle in joule is ……….
Answer» `- 7 J ` `+ 7` J `+10 `J 13 J Solution :Work DONE = `VEC(F) . vec(r )` ` = ( 5hat(i) +3 hat(j) + 2hat(k)) . (2hat(i) - hat(j))` ` = 10 - 3 = 7` J