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OpenStudy (anonymous):
when can a negative work be done?
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OpenStudy (anonymous):
when the object is moving in the opposite direction as the work being done...... an example would be the work done by friction on a moving ball. the work would be negative since the force of friction is in the opposite direction as the movement of the ball.
OpenStudy (anonymous):
ALso negative work is done when you are going against an electric field
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