Perhaps I should elaborated on that. The so-called 'definition' that I was addressing was saying that "energy is the ability to do work" -= Kinetic enrergy is energy of motion. So how can something moving do work? "Work" is defined as "force" x "distance" . So I gave an example of how a moving body can apply a force over a distance - a body compressing a spring is doing work on the spring - perhaps a nice diagram will illustrate that.Originally posted by zoobyshoe
The first thing I want to ask
is what is the signifigance of
speaking about a particle colliding with a spring?
I was thinking of something like a steel ball moving along with kinetic energy - it hits and compresses the spring. All the kinetic energy of the ball has gone - there is not potential energy is the spring.
Sorry if I was unclear. But I appreciate your mentioning it. I'll make the correction tomorrow - with a nice picture - I love making pictures .. :-)