is work a scalar or vector .explan

Question

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Answer 1

It's the dot product, though, not the cross product.  So it's a scalar.  Happy Thanksgiving.

 

Sorry, thought I was entering this as a comment. Wyzant really needs to improve this editor! Arturo's answer, below, is the correct one.

Answer 2

Uh -oh......

 

 

Happy Thanksgiving Michael and Arturo!!!!!

Answer 3

Work is a scalar because it is the "dot" product of 2 vectors, also called the scalar product.

 

F = force vector

d = displacement vector

θ = angle between the force vector and the displacement vector

 

W = work done by force F along the direction of the displacement d

 

W = F·d = |F||d|cosθ = scalar

 

W can also be expressed in terms of the components of the force and displacement vectors.

 

W = F_xd_x + F_yd_y + F_zd_z

Answer 4

Work is a vector because you multiply a force (a vector) by distance (a vector).

 

Work = force x distance