No because there has to be a remaining opposite persent
C = sqrt(e/m)
You can get this by first dividing away the m and then taking the square root of both sides.
I believe that this is correct if anything is unclear/blurry just ask and i will tell u what i wrote
To find out time interval δt we need to substract initial time from the final time. In this question first number in the coordinates representes time:
δt=50 - 0
δt= 50s
TIme interval is 50s.