A) \[\frac{3\,m{{v}_{0}}}{q{{E}_{0}}}\]
B) \[\frac{\sqrt{3\,}m{{v}_{0}}}{q{{E}_{0}}}\]
C) \[\frac{2\,m{{v}_{0}}}{q{{E}_{0}}}\]
D) \[\frac{\sqrt{2}\,m{{v}_{0}}}{q{{E}_{0}}}\]
Correct Answer: B
Solution :
[b] \[{{a}_{x}}=\frac{{{E}_{0}}q}{m}\] \[V_{0}^{2}+V_{x}^{2}={{(2\,{{V}_{0}})}^{2}}\] \[\Rightarrow \,\,{{V}_{x}}=\sqrt{3}{{V}_{0}}={{a}_{x}}t\] \[\Rightarrow \,\,t=\frac{\sqrt{3}\,{{V}_{0}}m}{{{E}_{0}}q}\]You need to login to perform this action.
You will be redirected in
3 sec