What is meant by elasticity?

What is meant by elastic fatigue?

What is meant by elastic limit ?

What is meant by elastic collision?

what is meant by elastic fatigue ?

What is meant by elastic collision ? Show that when two bodies of equal masses moving in one dimension suffer elastic collision, their velocities are exchanged after collision.

what is meant by elastic potential energy? Deerive an expression for the elastic potential energy of streched wire. Prove that its elasic energy density is equal to 1/2 x stress x strain

What is meant by ductility ?