Physics - Electrostatics Question with Solution | TestHub

A particle having charge $\mathrm{q}=+2.00\mu \mathrm{C}$ and mass $\mathrm{m}=0.0100\mathrm{kg}$ is connected to a string having length $\mathrm{L}=1.50\mathrm{m}$ and is tied to the pivot point P in the figure. The particle, string, and pivot point all lie on a frictionless horizontal table. The particle is released from rest when the string makes an angle $\theta =60^{\circ }$ with a uniform electric field of magnitude $\mathrm{E}=300\mathrm{V}/\mathrm{m}$. The speed (in m/s) of the particle when the string is parallel to the electric field (shown in figure) is x then 10x is :-