Work is given by:

$\overline{){\mathbf{W}}{\mathbf{=}}{\mathbf{F}}{\mathbf{\u2022}}{\mathbf{d}}}$

If the force on an object is in the negative direction, the work it does on the object must be

a. positive.

b. negative.

c. The work could be either positive or negative, depending on the direction the object moves.

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