Help please ): I don’t understand.

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.

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

That depends on what kind of environ meant it is in  in space it has the same force that was applied when the velocity was gained