Simplifying SI Units: What Quantity Does JNW⁻¹kg⁻¹ Denote?

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SUMMARY

The physical quantity denoted by ##\mathrm{J\cdot N\cdot W^{-1}\cdot kg^{-1}}## simplifies to ##\mathrm{s\cdot N\cdot kg^{-1}}##, where ##N## represents the Newton, a unit of force. The Newton can be expressed in terms of fundamental units as ##\mathrm{kg\cdot m\cdot s^{-2}}##. Therefore, the expression can be further simplified to ##\mathrm{s\cdot kg^{-1}\cdot kg\cdot m\cdot s^{-2}}##, ultimately leading to ##\mathrm{s\cdot m\cdot s^{-2}}##, which indicates a relationship involving velocity and acceleration.

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  • Understanding of SI units and their definitions
  • Familiarity with mechanics equations, specifically Newton's second law (f = ma)
  • Knowledge of work-energy principles in physics
  • Basic grasp of dimensional analysis
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Homework Statement


What physical quantity does ##\mathrm{J\cdot N\cdot W^{-1}\cdot kg^{-1}}## denote?

Homework Equations


You can simplify using mechanics equations or ones from electrodynamics. Be creative, I guess.

The Attempt at a Solution


##\mathrm{J\cdot N\cdot W^{-1}\cdot kg^{-1}}## simplifies to ##\mathrm{s\cdot N\cdot kg^{-1}}##. I don't know how to continue from this point.

Thanks in advance!
 
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Expand the Newton. Think f = ma.
 
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Do you know the definition of N?
 
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##N## is unit of force, how can you further write it in terms of fundamental units?
 
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Velocity it is. Thanks for the help everyone! I was never taught what the exact definition of the Newton was.
 
Just rewriting units in terms of others does not really require you to know its definition. Just use any formula you know in which force is involved, like work being equal to force times distance (for constant force).
 
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