How Are Impulse and Work Methods of Applying Force to a Body?

  • Thread starter Thread starter RustyDoorknobs
  • Start date Start date
  • Tags Tags
    Force
AI Thread Summary
Force can be applied to a body through impulse or work, both of which relate to the change in momentum. Mathematically, force is defined as the rate of change of momentum (dp/dt), indicating how momentum varies over time. The cumulative effect of all dp/dt acting on a body determines the total change in momentum. This relationship highlights how external forces influence the motion and behavior of the body. Understanding these concepts is crucial for analyzing dynamics in physics.
RustyDoorknobs
Messages
3
Reaction score
0
Is it correct that the two ways that force can be 'applied' are via an Impulse or Work? I know that force is defined as dp/dt, but how is force, mathematically, applied to a body? How is the dp/dt 'added in' to the behavior of the body, if that makes sense?
 
Physics news on Phys.org
RustyDoorknobs said:
How is the dp/dt 'added in' to the behavior of the body
The sum of all the dp/dt acting on the body tells you how the total p of the body changes over time.
 
Hello! Let's say I have a cavity resonant at 10 GHz with a Q factor of 1000. Given the Lorentzian shape of the cavity, I can also drive the cavity at, say 100 MHz. Of course the response will be very very weak, but non-zero given that the Loretzian shape never really reaches zero. I am trying to understand how are the magnetic and electric field distributions of the field at 100 MHz relative to the ones at 10 GHz? In particular, if inside the cavity I have some structure, such as 2 plates...
Back
Top