i am trying to create an animation where a stretchy "i" bounces on a tnt switch...i thought of creating the bounce with just animation but know i have no idea on how to make the lever as in the picture react to it(move downwards as the "i" bounces)...all i need is pointers on how to do it any help will be appreciated
This can be done with rigid body physics using a generic spring constraint. You set up the constraint as an empty that controls the upper and lower bounds as well as the spriginess. I'll attach a blend file that gives an example of a ball falling onto a spring board that bounces up and down on a spring. It should serve as a guide for what you want to do.
EDIT: In the example, I have an empty that points to the top and bottom plates of the spring board. The top plate is active and the bottom plate is passive. (The other parts are not rigid bodies so they could be removes with no consequence.)
The upper and lower bounds for the spring are set in the Limits fields for the empty (physics context window). In your case (like mine), you need to set values for the z axis, and leave the others at 0.0.
The springiness is set in the Springs fields for the empty. Again, you set the z axis and leave the others alone.
You should also toggle the Disable Collisions checkbox for the empty.