I am new to physics and I hope you can help me solve this problem.
When two objects collide with each other and stick, there is an internal force, so linear momentum is conserved.
But when I calculate the initial and final kinetic energies of the system, it shows me that energy is lost when the collision occurs. This shows me that it is an inelastic collision. But how is the energy lost without the kinetic energy being transmitted into any other force.
I thought that it is due to the friction between the two objects, but my thinking should be wrong because in this stage, friction is not a course to decrease the kinetic energy of the system.
So, can you tell me what happened to the decreased energy of the system? In which energy type was it transmitted? I hope for a brief explanation.