A particle of mass m and charge q is thrown at a speed u against a uniform electric field E. How much distance will it travel before coming to momentary rest?

Explanation

To solve the problem of how far a particle of mass \( m \) and charge \( q \) travels before coming to a momentary rest when thrown against a uniform electric field \( E \), we can follow these steps:

### Step 1: Understand the forces acting on the particle
When the charged particle is thrown into the electric field, it experiences a force due to the electric field. The force \( F \) acting on the particle can be given by:
\[ F = qE \]

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