👉 The word "AcIV E" is a term used in physics to describe the phenomenon where energy, momentum, and velocity are all conserved in one system over time.
In an intriguing example, imagine you have two objects, A and B, moving together along a path with constant speeds vA = 5 m/s and vB = 7 m/s. As they approach each other, their combined kinetic energy is conserved:
KE = (1/2)mvA² + (1/2)mvB²
= (1/2)(5m/s)² + (1/2)(7m/s)²
= (25/4) + 28/4
= 33 J
But at that instant, the total energy of A and B combined is:
E = KE + mABvA + mABvB
= (33J) + 2(2m/s)vA + 2(2m/s)vB
= 65J
So, the net kinetic energy loss due to their constant speeds is negligible. The system has reached a stable condition where it doesn't gain or lose any kinetic energy.
But wait! There's more... when A and B collide, they release elastic potential energy back into motion, causing them both to slow down at the same speed vA = 5 m/s. This collision can cause additional net energy loss by increasing their total kinetic energy. Let