Due to a force of $(6\hat i + 2\hat j)N$ the displacement of a body is $(3\hat i - \hat j)m$, then the work done is.....$J$
Due to a force of $(6\hat i + 2\hat j)N$ the displacement of a body is $(3\hat i - \hat j)m$, then the work done is.....$J$
$16$
$12$
$8$
$0$
Due to a force of $(6\hat i + 2\hat j)N$ the displacement of a body is $(3\hat i - \hat j)m$, then the work done is.....$J$
Work done $ = \overrightarrow F .\overrightarrow s $
$ = (6\hat i + 2\hat j) \cdot (3\hat i - \hat j) = 6 \times 3 - 2 \times 1 = 18 - 2 = 16\,J$