Recent content by richardbsmith

Thank you so much for responding. I think though my question which started with uniform motion and delta V, is now simply a geometry question. I will try to put up a drawing of what I so pitifully tried to explain. Here is another image with a different angle and size of the tangents...

This is probably a geometry question more that a physics question. I am trying to prove that in uniform circular motion \Delta V/V= s/R. I am basically trying to show that S forms a right triangle with \DeltaV, when V{1} is added to V{2} as a vector. (This is to demonstrate that the triangles...

It might be an idea to buy a pair of binoculars first. Less expensive and you might be able to get a feel for what you would like to gain from a telescope.

Doc Al. Thanks for the clarification. I think it is becoming more clear. I'll get a better handle as I practice the problems. I do with that some of these texts would make it clearer that work as force through distance, is more than moving a body through a distance. It is adding energy...

The constant speed that I intended in the question would be from a constant force needed to overcome, say friction. Moving a mouse over a mouse pad. Is there work done if the mouse is moved with constant vector motion? The distinction of net force and net work will help me work through this...

If there is no acceleration, is there work done when a body is moved through a distance? Force requires mass and acceleration. Without acceleration then no force, no work? Then if a body is moved at constant speed, is there any work done? What if the body is moved at constant speed...