The ultimate speed = c! Relativistic momentum and energy (VCE / A-level / IB physics)

Why can't we go faster than the speed of light? What happens to momentum and energy as you approach c? This short tutorial explains why. It is designed for the Australian VCE exam board.

To be precise, impulse or the change of mementum [0:39] is equal to the force by the difference of time : *F=dp/dt*
and when you write F=mi.dV/dt, you do the underlying hypothesis that mi _(mi for inertial mass)_ would be constant.
If you don't add this hypothesis, you have *F=d(mi.V)/dt* and then you get to the Neo-Newtonian Mechanics.