- #1
physics user1
So, i want to derive the relativistic force using the definition F= dp/dt and p= γ mv
I consider a frame of reference solidal with the particle. Algebrically i can do it and it works, but why can i do it? Why do i have to differentiate also γ? That would mean that the speed of the frame of reference changes in time, (and it does, the particle accelerates) but then is no more an inertial frame so how can special relativity hold? Please help me i cannot get out of this problem
I consider a frame of reference solidal with the particle. Algebrically i can do it and it works, but why can i do it? Why do i have to differentiate also γ? That would mean that the speed of the frame of reference changes in time, (and it does, the particle accelerates) but then is no more an inertial frame so how can special relativity hold? Please help me i cannot get out of this problem