What happens to energy when elastic objects interact with other objects?

In terms of energy, during an elastic-type contact interaction there is transfer of mechanical energy between the interacting objects, and a change in the kinetic energy of at least one of them. There is also a change in the elastic potential energy of the elastic object involved.

Earthplanet yplanet y5=earth     *many different equationsplanet x1.5=earthplanet x is two times planet yobject 5,2500 mass5,1,3,2,4object 1 is four times obect 4

Hi, your answer is not correct. this is a cumulative