The cars will have equal speeds and the 2 kg car will have greater kinetic energy.
I believe the answer you are looking for is perception.
In a balanced system, the total energy should always stay the same. The total energy is the sum of the potential and the kinetic energies. If the potential energy increases, then the kinetic energy should decrease. This happens to keep the system under a state of balance.
Answer:
Elements are made up of only one type of atom. Each element has a unique chemical symbol. Elements can be identified by their atomic number.
The answer is 125 because if u add you'll get the answer