Work done:

$\overline{){\mathbf{W}}{\mathbf{=}}{\mathbf{F}}{\mathbf{\xb7}}{\mathbf{d}}{\mathbf{}}{\mathbf{c}}{\mathbf{o}}{\mathbf{s}}{\mathbf{}}{\mathbf{\theta}}}$

The angle between two parallel vectors is 0 while the angle between antiparallel vectors is 180.

The angle between the 12 N force and the direction of motion is 180°.

Find the work W done by the 12-newton force and the 15-newton force

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