Answer to Question #3908 in Mechanics | Relativity for aqib

Question #3908
Why the work done formula is scalar and the force and distance is vector? What is the reason?
1
Expert's answer
2011-08-11T06:28:47-0400
Because the work hasn't any direction, it can be positive or negative. The dot product of two vectors means that we take into account only the force projection on the displacement.

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