Thank you very much @Orodruin !
I corrected it.
Then I've to do \frac{\partial x}{\partial V}.
x(V)=\frac{2 \cdot L \cdot \sin \theta}{ \sqrt{ 1+ \frac{2 \cdot V \cdot q}{m \cdot v_i^2}-\sin^2 \theta }+ \cos \theta}
\frac{\partial x}{\partial V} = \frac{ \frac{-2L \sin \theta \cdot \frac{2q}{m...
Homework Statement
Two parallel plates located at a distance "L" from each other they maintain a potential difference "V" because of a battery (as shown in the picture). Through a small hole, made in bottom plate, electrons get into system (with mass "m" and charge "-e"), with velocity "v" and...