Physics

Problem

A force

\vec F = 3\,\hat i + 4\,\hat j\;\text{N}

moves a particle through a displacement

\vec s = 2\,\hat i - 1\,\hat j\;\text{m}

. What is the work done by the force? a)

10\,\text{J}

2\,\text{J}

11\,\text{J}

6\,\text{J}