When to Use Relativistic Momentum?

Relativistic momentum is defined in such a way that the conservation of momentum will hold in all inertial frames. Whenever the net external force on a system is zero, relativistic momentum is conserved, just as is the case for classical momentum. This has been verified in numerous experiments.

What is relationship between relativistic momentum and energy?

The energy–momentum relation is consistent with the familiar mass–energy relation in both its interpretations: E = mc² relates total energy E to the (total) relativistic mass m (alternatively denoted m_rel or m_tot ), while E₀ = m₀c² relates rest energy E₀ to (invariant) rest mass m₀.

Under what conditions is the relativistic kinetic?

The relativistic kinetic energy increases to infinity when an object approaches the speed of light, this indicates that no body with mass can reach the speed of light. On the other hand, Newtonian kinetic energy continues to increase without bound as the speed of an object increases.