# Projectile Motion Of Charged Particle 2

The above shows the path of a charged particle with quantity of electricity $$+q$$ and a mass of $$m$$ in an $$xy$$-plane. When the particle is thrown at a $$45°$$ angle to the $$+x$$ direction at a speed of $$v_0$$, its path is a projectile motion initially, and then shows a uniform motion after entering into the uniform magnetic field. Finally, the path becomes a projectile motion again after coming out of the the magnetic field.

What is the intensity of the magnetic field?

Gravitational acceleration is $$g$$, and the amount of air resistance is negligible.

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