Which to use->Dot or cross product

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SUMMARY

The discussion focuses on calculating the work done by a steady wind on a sliding crate using vector multiplication. The crate's displacement vector is given as d = (-3.0 m)i, while the wind's force vector is F = (2.0 N)i + (-6.0 N)j. The correct approach to find the work done involves using the dot product, as work is defined as W = F · d, where the dot product of the force and displacement vectors yields the scalar work done.

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Celestiela
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a crate is sliding (disregard friction) with d=(-3.0 m)i while a steady wind pushes against the crate F=(2.0 N)i + (-6.0 N)j

How much work is done by the wind on the crate?

Ok W=Fd so I want to multiply the two vectors together.

[(-3.0 N)i ]*[(2.0 N)i + (-6.0 N)j ]

Do I use a cross product or a dot product? Why?
 
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The answer is in the proper defining equation of work.
 
D'OH

Working on homework on the weekends again...

:zzz:

Thanks!
 

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