Answer :
Answer with Explanation:
One hypothesis above would probably rely on the situation called "inelastic collision." The two carts are travelling towards each other at different speed. So, this means that once they collide, the kinetic energy will not be conserved but will be transferred as sound energy, thermal energy or material deformation. The impact will be great, thus a greater fraction of kinetic energy will be lost from the system.
The reason that hypothesis might be correct should be based on the inelastic collision.
What is an inelastic collision?
A collision refer to that part of the kinetic energy with respect to the colliding particles that changed into another form of energy like heat or radiation.
Here the two carts should be traveling towards each other at the distinct speed. So in the case when they collide so the kinetic energy should not be conserved however it should be transferred as the sound energy
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