A) \[R{{\left( \frac{mg}{{{k}_{e}}\sqrt{3}} \right)}^{1/2}}\]
B) \[R{{\left( \frac{mg}{{{k}_{e}}\sqrt{2}} \right)}^{1/2}}\]
C) \[R{{\left( \frac{mg}{{{k}_{e}}2\sqrt{3}} \right)}^{1/2}}\]
D) \[R{{\left( \frac{2\,mg}{{{k}_{e}}\sqrt{3}} \right)}^{1/2}}\]
Correct Answer: A
Solution :
[a] The bowl exerts a normal force N on each bead, directed along the radial line or at \[60.0{}^\circ \]above the horizontal. Consider the free-body diagram of the bead on the left with electric force \[{{F}_{e}}\] applied:You need to login to perform this action.
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