Question

whats the usage of prooving relatiin of kinetic energy and momentum...where it could be used in solving?​

Answer 1

Sometimes it's desirable to express the kinetic energy of a particle in terms of the momentum. That's easy enough. Since tex2html_wrap_inline1089 and the kinetic energy tex2html_wrap_inline1091 so

equation37

Note that if a massive particle and a light particle have the same momentum, the light one will have a lot more kinetic energy. If a light particle and a heavy one have the same velocity, the heavy one has more kinetic energy.