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Showing posts with label non-contact forces. Show all posts
Showing posts with label non-contact forces. Show all posts

February 01, 2013

What is Kinetics?


Whilst kinematics deals with the motion and deformation of a bodykinetics studies the forces that produce motion. The two types of forces are:
  1. Body forces (per unit mass or volume) are non-contact forces that act on the total mass of a continuum. Examples include gravitational force, electromagnetic force and inertial force.
  2. Surface forces (per unit area) are contact forces that act across an internal or external surface of a body. Examples include pressure, contact forces and frictional forces.
Figure. Magnetic (non-contact) vs. frictional (contact) forces. Images adapted from Newtown High School and Joey's Blog.