A charged particle having charge q and mass m is projected into a region of uniform electric field of strength −→E0, with velocity →V0 perpendicular to −→E0. Throughout the motion, apart from electric force, the particle also experiences a dissipative force of constant magnitude qE0 and directed opposite to its velocity. If →V0|=6 m/s, then find its speed when it has turned through an angle of 90∘. Write speed in m/s.

A charged particle having charge q and mass m is projected into a regi

1.	A charged particle having charge q and mass m is projected into a region of uniform electric field of strength −→E0, with velocity →V0 perpendicular to −→E0. Throughout the motion, apart from electric force, the particle also experiences a dissipative force of constant magnitude qE0 and directed opposite to its velocity. If →V0\|=6 m/s, then find its speed when it has turned through an angle of 90∘. Write speed in m/s.
Answer» A charged particle having charge $q$ and mass $m$ is projected into a region of uniform electric field of strength $_{0}$ , with velocity $_{0}$ perpendicular to $_{0}$ . Throughout the motion, apart from electric force, the particle also experiences a dissipative force of constant magnitude $q E_{0}$ and directed opposite to its velocity. If $_{0} \| = 6 m/s$ , then find its speed when it has turned through an angle of $90^{\circ}$ . Write speed in m/s.

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