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When force is ---- to the direction of motion no work is?
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When force is ---- to the direction of motion no work is?

User Peakit
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when force is perpendicular to the direction of motion
User Brad Larson
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As work is a vectorial product it is directly dependant on displacement and force

When force is zero, but displacement occurs ----> no work is done

Like-wise:
If there is force but no displacement --> work is also not done
User Omgj
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